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High Resolution Imaging Camera Landing site DEM datasets
The digital elevation model datasets contains Tianwen-1 landing site surface terrain data acquired by high resolution camera, with a resolution of 3.5 meters. The high-resolution camera uses the panchromatic linear array push-broom mode to complete the three-dimensional imaging of the landing area at different orbiter. Each data contains a tif data (image), a tfw data (coordinate information) and prj data (projection information).
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2021/3~2021/4 First release time:2021/8/3 The newest release time:2021/8/3 Released Batch:1
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:2.7GB Data format:DEM Version:A State:Open Access
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High Resolution Imaging Camera Landing site DIM datasets
The digital image model datasets contains Tianwen-1 landing site surface image data acquired by high resolution camera, with a resolution of 0.7 meters. The high-resolution camera uses the panchromatic linear array push-broom mode to complete the three-dimensional imaging of the landing area at different orbiter. Each data contains a tif data (image), a tfw data (coordinate information) and prj data (projection information).
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2021/3~2021/4 First release time:2021/8/3 The newest release time:2021/8/3 Released Batch:1
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:17.9GB Data format:DIM Version:A State:Open Access
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High Resolution Imaging Camera level 2B datasets
The datasets contains Mars surface image data, acquired by High Resolution Imaging Camera. The level 2B datasets has be added geometric positioning information based on Level 2A datasets. The data is compliant to PDS 4 (Planetary Data System) , each data contains 4 files: data entity, data label, geographic grid and auxiliary data.
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2021/3~2022/8 First release time:2022/6/6 The newest release time:2023/4/3 Released Batch:9
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:490.6GB Data format:2B Version:A State:Open Access
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Moderate Resolution Imaging Camera level 2C datasets
The datasets contains Mars surface image data, acquired by Moderate Resolution Imaging Camera. The level 2C datasets is performed color interpolation and color correction based on Level 2B datasets. The data is compliant to PDS 4 (Planetary Data System) , each data contains 4 files: data entity, data label (descriptive information of data), geographic grid and thumbnail.
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2021/11~2022/7 First release time:2022/2/14 The newest release time:2023/3/3 Released Batch:8
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:493.6GB Data format:2C Version:A State:Open Access
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Tianwen-1 Mars Global Color Orthomosaic Chart 76m
The datasets are chart map products made from images obtained by Moderate Resolution Imaging Camera, which have undergone photometric correction, geometric correction, global mapping, and other processes, with a total of 36 map charts. Each data contains a tif image data. The resolution of the image is 76m.
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2021/11~2022/7 First release time:2024/6/3 The newest release time:2024/6/3 Released Batch:1
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:79.1GB Data format:IMAGE Version:A State:Open Access
DOI:https://dx.doi.org/10.12350/CLPDS.GRAS.TW1.MoRIC-DOM_076_Charts.vA
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Tianwen-1 Mars Global Color Orthomosaic 76m
The dataset is global map product made from images obtained by Moderate Resolution Imaging Camera, which have undergone photometric correction, geometric correction, global mapping, and other processes. Each data contains a tif image data. The resolution of the image is 76m.
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2021/11~2022/7 First release time:2024/6/3 The newest release time:2024/6/3 Released Batch:1
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:46.0GB Data format:IMAGE Version:A State:Open Access
DOI:https://dx.doi.org/10.12350/CLPDS.GRAS.TW1.MoRIC-DOM_076_Global.vA
Suggested Citation: J. Liu, X. Ren, W. Yan et al., A 76-m per pixel global color image dataset and map of Mars by Tianwen-1, Science Bulletin, https:// doi.org/10.1016/j.scib.2024.04.045
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Mars Mineralogical Spectrometer level 2B datasets
The datasets contains mineral spectral data of Mars surface, acquired by Mars Mineralogical Spectrometer. The level 2B datasets has be added geometric positioning information based on Level 2A datasets. The data is compliant to PDS 4 (Planetary Data System) , each data contains 4 files: data entity, data label (descriptive information of data), geographic gird and Auxiliary data.
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2021/11~2023/2 First release time:2022/2/14 The newest release time:2023/4/3 Released Batch:12
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:203.7GB Data format:2B Version:A State:Open Access
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Mars Orbiter Scientific Investigation Radar level 2B datasets
The datasets contains very low frequency data during the Earth-Mars transition phase, acquired by Mars Orbiter Scientific Investigation Radar in very low frequency model. The level 2B datasets has be added geometric positioning information based on Level 2A datasets. The data is compliant to PDS 4 (Planetary Data System) , each data contains a pair of files: data entity and data label (descriptive information of data).
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2202/7~2021/1 First release time:2021/8/3 The newest release time:2021/8/3 Released Batch:1
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:1.5GB Data format:2B Version:A State:Open Access
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Mars Ion and Neutral Particle Analyzer level 2B datasets
The datasets contains Martian space environment plasma and neutral particle data, acquired by Mars Ion and Neutral Particle Analyzer. The level 2B datasets has be added geometric positioning information based on Level 2A datasets. The data is compliant to PDS 4 (Planetary Data System) , each data contains a pair of files: data entity and data label (descriptive information of data).
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2021/6~2022/11 First release time:2021/8/3 The newest release time:2023/1/6 Released Batch:13
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:463.8GB Data format:2B Version:A State:Open Access
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Mars Energetic Particles Analyzer level 2B datasets
The datasets contains energetic particles spectrum and flux data in Mars orbit and Earth-Mars transfer orbit , acquired by Mars Energetic Particles Analyzer. The level 2B datasets has be added geometric positioning information based on level 2A datasets. The data is compliant to PDS 4 (Planetary Data System) , each data contains a pair of files: data entity and data label (descriptive information of data).
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2020/7~2022/11 First release time:2022/5/5 The newest release time:2023/1/6 Released Batch:9
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:29GB Data format:2B Version:B State:Open Access
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Mars Orbiter Magnetometer level 2C datasets
This data is the space environment magnetic field information obtained by the Mars orbiter Magnetometer. The level 2C data is processed jointly based on the 2B data of the inner and outer double probes, and the interference of background noise is deducted.The data is compliant to PDS 4 (Planetary Data System), each data contains a pair of files: data entity and data label (descriptive information of data).
Mission:Tianwen-1 Platform:Orbiter
Data acquired time:2021/11~2021/12 First release time:2023/3/3 The newest release time:2023/3/3 Released Batch:1
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:1.2GB Data format:2C Version:A State:Open Access
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Navigation and Terrain Camera level 2C datasets
The datasets contains images of probe targets on Martian surface around the excurse route, acquired by Navigation and Terrain Camera.The level 2C datasets is performed color restoration and color correction based on Level 2B datasets.The data is compliant to PDS 4 (Planetary Data System) , each data contains a pair of files: data entity and data label (descriptive information of data).
Mission:Tianwen-1 Platform:Rover
Data acquired time:2021/6~2022/4 First release time:2021/8/3 The newest release time:2022/6/6 Released Batch:12
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:16.6GB Data format:2C Version:A State:Open Access
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Multispectral Camera level 2B datasets
The datasets contains multi-band spectral image data of Mars surface, acquired by Multispectral Camera. The level 2B datasets has be added geometric positioning information based on Level 2A datasets. The data is compliant to PDS 4 (Planetary Data System) , each data contains a pair of files: data entity and data label (descriptive information of data).
Mission:Tianwen-1 Platform:Rover
Data acquired time:2021/6~2022/2 First release time:2022/2/14 The newest release time:2022/4/6 Released Batch:3
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume: 322.6MB< Data format:2B Version:A State:Open Access
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Mars Surface Composition Detector level 2B datasets
The datasets contains visible and near infrared spectrum data of rocks, soil and sand dunes around the excurse route, acquired by Mars Surface Composition Detector. The level 2B datasets has be added geometric positioning information based on Level 2A datasets. The data is compliant to PDS 4 (Planetary Data System) , each data contains a pair of files: data entity and data label (descriptive information of data).
Mission:Tianwen-1 Platform:Rover
Data acquired time:2021/6~2022/2 First release time:2021/8/3 The newest release time:2022/4/6 Released Batch:6
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:126.4MB Data format:2B Version:A State:Open Access
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Mars Rover Penetrating Radar level 2B datasets
The datasets contains Martian surface shallow structure data of excurse route, acquired by Mars Rover Penetrating Radar. The level 2B datasets has be added geometric positioning information based on Level 2A datasets. The data is compliant to PDS 4 (Planetary Data System) , each data contains a pair of files: data entity and data label (descriptive information of data).
Mission:Tianwen-1 Platform:Rover
Data acquired time:2021/6~2022/4 First release time:2021/8/3 The newest release time:2022/6/6 Released Batch:11
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:2.6GB Data format:2C Version:A State:Open Access
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Mars Climate Station level 2C datasets
The datasets contains Meteorological data and voice data on Martian surface, acquired by Mars Climate Station. The level 2C datasets is generated based on Level 2B datasets, including 3 temperature data, 1 pressure data, 1 wind speed data and 1 wind direction data. The data is compliant to PDS 4 (Planetary Data System) , each data contains a pair of files: data entity and data label (descriptive information of data).
Mission:Tianwen-1 Platform:Rover
Data acquired time:2021/6~2022/4 First release time:2021/8/3 The newest release time:2022/6/6 Released Batch:11
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:48.4MB Data format:2C Version:A State:Open Access
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Mars Rover Magnetometer level 2C datasets
The datasets contains background magnetic field information of landing area and Zhurong rover's inspection area, acquired by Mars Rover Magnetometer. The level 2C datasets is generated by jointly processing of the dual probes of level 2B data and deducting background noise. The data is compliant to PDS 4 (Planetary Data System) , each data contains a pair of files: data entity and data label (descriptive information of data).
Mission:Tianwen-1 Platform:Rover
Data acquired time:2021/6~2022/4 First release time:2022/5/5 The newest release time:2022/6/6 Released Batch:2
Producer:NAOC/GRAS Email:lpdc@nao.cas.cn
Volume:82.1MB Data format:2C Version:A State:Open Access
TianWen-1
Tianwen-1 mission is the first mission to explore Mars in China, and China become the first nation to orbit, land, release a rover, and deploy smallsats during its first foray into Martian space. Tianwen-1 consisting of 3 parts: an orbiter, lander and the Zhurong rover. The mission was launched from the Wenchang Spacecraft Launch Site on 23 July 2020 on a Long March 5 heavy-lift launch vehicle. After seven months of transit through the inner Solar System, the spacecraft entered Martian orbit on 10 February 2021. For the next three months the probe studied the target landing sites from a reconnaissance orbit. On 15 May 2021, the lander/rover portion of the mission successfully touched down on Mars.
The mission's scientific objectives include: investigation of Martian surface geology and internal structure, search for indications of current and past presence of water, and characterization of the space environment and the atmosphere of Mars. In order to complete the scientific task, it carries 13 scientific instruments, Moderate Resolution Imaging Camera, High Resolution Imaging Camera, Mars Orbiter Scientific Investigation Radar, Mars Mineralogical Spectrometer, Mars Orbiter Magnetometer, Mars Ion and Neutral Particle Analyzer, Mars Energetic Particles Analyzer onboard orbiter, and Navigation and Terrain Camera, Multispectral Camera, Mars Rover Penetrating Radar, Mars Surface Composition Detector, Mars Rover Magnetometer, Mars Climate Station onboard rover.
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Moderate Resolution Imaging Camera(MoRIC)
with a resolution of 100 m from a 400 km altitude. It takes color photos in visible band. It is used to obtain the global image of Mars.
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High Resolution Imaging Camera(HiRIC)
with a resolution of 2.5 m from a 256 km altitude in panchromatic mode, 10 m in color mode. It is used to obtain fine image of key areas on Mars.
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Mars Orbiter Scientific Investigation Radar(MOSIR)
aims to explore the Martian surface and subsurface water-ice by means of the dual-polarization echo characteristics of radar. It is also be used to detect the very low frequency data during the seven months of transit through the inner Solar System.
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Mineralogical Spectrometer(MMS)
utilizes the visible and near infrared imaging spectrometer with detection wavelengths ranging from 0.45 to 3.4 µm to investigate and analyze the Martian surface composition. It also investigate the distribution of regolith types and subsurface structure of Mars.
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Mars Orbiter Magnetometer(MOMAG)
is used to map Martian magnetic field and help understanding the mechanism of interaction between the solar wind magnetic field and Mars ionosphere.
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Mars Ion and Neutral Particle Analyzer(MINPA)
measures the flux of ions in space environment, distinguishes the main ions and obtains their physical parameters such as the density, velocity and temperature.
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Mars Energetic Particles Analyzer(MEPA)
obtains the energy spectrum, flux and elemental composition of energy electrons, protons, α particles and ions.
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Mars Surface Composition Detector(MarSCoDe)
combines laser-induced breakdown spectroscopy (LIBS), short wave infrared spectroscopy (SWIR) and micro-imaging camera. LIBS (240-850 nm) is used to analyse element composition. SWIR (850nm-2400nm) is used to analyse the minerals and rocks. Micro-imaging camera (900-1000nm) is used to obtain high resolution image of probe targets.
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Multispectral Camera(MSCam)
investigates the mineral components to establish the relationship between Martian surface water environment and secondary mineral types, and to search for historical environmental conditions for the presence of liquid water.
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Navigation and Terrain Camera(NaTeCam)
is used to construct topography maps, extract parameters such as slope, undulation and roughness, investigate geological structures, and conduct comprehensive analysis on the geological structure of the surface parameters.
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Mars Rover Penetrating Radar(RoPeR)
two frequencies, to image about 100 m (330 ft) below the Martian surface, obtain the martian shallow geological structure data.
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Mars Rover Magnetometer(RoMAG)
obtains the fine-scale structures of crustal magnetic field based on mobile measurements on the Martian surface.
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Mars Climate Station(MCS)
measures the temperature, pressure, wind velocity and direction of the surface atmosphere, and as a microphone to capture Martian sounds.
根据嫦娥五号数据的处理情况及相关的政策法规,对嫦娥五号3个有效载荷相关级别的科学数据产品进行了发布,共发布数据文件112529个数据文件,数据总量3319756.15MB。
各载荷科学数据的详细发布情况如下:
载荷名称 | 发布级别 | 文件数 | 数据量 |
MoRIC | DOM-Global-Chart-76m | 36 | 81029.73MB |
DOM-Global-76m | 1 | 47132.18MB | |
HiRIC | LandingSite-DEM-3.5m | 1 | 1065.24MB |
LandingSite-DIM-0.7m | 16 | 7391.11MB | |
2B | 524 | 307745.90MB | |
2B | 524 | 306139.08MB | |
2B | 524 | 303516.64MB | |
2B | 5400 | 52174.23MB | |
2B | 562 | 1810.49MB | |
2B | 4142 | 353461.12MB | |
2B | 3784 | 16962.16MB | |
2B | 52 | 12.62MB | |
2B | 3862 | 149296.11MB | |
2B | 72 | 981.80MB | |
2B | 148 | 157506.80MB | |
2B | 18 | 1.33MB | |
2B | 2622 | 326401.10MB | |
2B | 20 | 251.91MB | |
2C | 2378 | 9020.78MB | |
2C | 3766 | 293773.87MB | |
2C | 73473 | 883217.97MB | |
2B | 352 | 1506.32MB | |
2B | 188 | 170.26MB | |
2B | 124 | 124.47MB | |
2B | 118 | 0.91MB | |
2B | 158 | 1.59MB | |
2B | 2 | 0.02MB | |
2C | 222 | 46.24MB | |
2C | 128 | 3.33MB | |
2B | 48 | 192.22MB | |
2B | 98 | 6.59MB | |
2B | 5152 | 346.28MB | |
2C | 1310 | 7864.93MB | |
2C | 1310 | 7864.93MB | |
2C | 304 | 82.06MB | |
2C | 218 | 595.76MB | |
2C | 218 | 595.75MB | |
2C | 218 | 595.86MB | |
2C | 218 | 595.81MB | |
2C | 218 | 270.68MB |
The ground application system defines and explains the released standard data products of the first Mars exploration mission, which can be served as the basis for the use of standard data products.
1.Abbreviation
Table 1-1: Scientific instrument abbreviation list
Plantform | Chinese name | English name | Abbreviation |
Orbiter | 高分辨率相机 | High Resolution Imaging Camera | HiRIC |
中分辨率相机 | Moderate Resolution Imaging Camera | MoRIC | |
火星矿物光谱分析仪 | Mars Mineralogical Spectrometer | MMS | |
环绕器次表层探测雷达 | Mars Orbiter Scientific Investigation Radar | MOSIR | |
火星离子与中性粒子分析仪 | Mars Ion and Neutral Particle Analyzer | MINPA | |
火星能量粒子分析仪 | Mars Energetic Particles Analyzer | MEPA | |
火星磁强计 | Mars Orbiter Magnetometer | MOMAG | |
Rover | 导航地形相机 | Navigation and Terrain Camera | NaTeCam |
火星车次表层探测雷达 | Mars Rover Penetrating Radar | RoPeR | |
火星表面成分探测仪 | Mars Surface Composition Detector | MarSCoDe | |
火星气象测量仪 | Mars Climate Station | MCS | |
多光谱相机 | Multispectral Camera | MSCam | |
火星表面磁场探测仪 | Mars Rover Magnetometer | RoMAG |
2.Scientific data product classification
The ground application system preprocesses the detection data of the scientific instrument carried by Tianwen-1, and produces standard data of various levels. The scientific data products released are level 2B or 2C.
Table 2-1: Definitions of the scientific data level
Level | title | Data processing description |
Frame data | RAW | The downlink data are processed by local stations for demodulation, frame synchronization, descrambling, and RS decoding to form data with complete structure and byte-aligned data. It is the preprocessed input data. |
0级数据 | Level 0A | Level 0A, is source packet data that received at a single ground station for each payload |
Level 0B | Level 0B, is on the basis of level 0A, after deduplicating, uncompressing, sorting by acquisition time and frame number, then combine into complete data. | |
1级数据 | Level 1 | Level 1 data is generated, on the basis of Level 0B, after numerically converting temperature, voltage, current and other instrument parameters, and reorganizing according to observation cycles. |
2级数据 | Level 2A | Level 2A data created after correction using calibration results on the basis of level 1. |
Level 2B | Level 2B added geometric information base on level 2A | |
Level 2C | Level 2C processed according to the needs of each scientific instrument based on level 2B. |
3.Data file naming
The naming specification of CE-5 data product is as follow:
HXX_st_pl_ty_dc_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.lv.Fields separated by ‘_’ mean.
3.1 Mission
HX1: mission identification, HX1-Or means Tianwen-1Orbiter, HX1-Ro means Tianwen-1 Rover..
3.2 Ground station
St means data source (ground station),including GRAS and BACC;the st of lever 2B, 2C all are GRAS.
3.3 Scientific instrument
Pl means the abbreviation of scientific instruments,then added work mode and data number.
For example: MoRIC-F-001means the 1st image of MoRIC in full frame mode.。
The pl means can be check in Table 1.
3.4 Data products type
Ty means the type of data products:SCI—scientific data.
3.5 Time characteristic of data
dc means time characteristic of data:
R——Real-time data;
P——Playback data;
N——Indistinguishable data (mixed data).
3.6 Start time and end time
The start time and end time all are UTC, yyyymmddhhmiss means the start time, yyyy means year, mm means month, dd means day, hh means hour, mi means minute, ss means second.
YYYYMMDDHHMISS means the end time, YYYY means year, MM means month, DD means day, HH means hour, MI means minute, SS means second.
The start and end time of the level 2 data file is the time of the first record and the time of the last record in the data file. If the data is a single image, the start time and end time are the same, which is the actual acquisition time of this image.
3.7 Detection cycle number
In level 2 data, the 0b means detection cycle number, the value is 00001-99999.
3.8 Product version
ver means product version, from A to Z, the first version is A, the last version is Z.
3.9 Product level
lv means product level:
All levels of scientific data or auxiliary data suffix are 2B or 2C.
Corresponding PDS tag file suffixes are 2BL or 2CL.
4.Data product format description
The standard data product for the first Mars exploration mission was designed based on the Version 1.12.0 of the Planetary Data System Standards Reference published on the website in June 2019. Level 2 data products are stored in accordance with the specification Planetary Data System Standards Reference (Version 1.12.0, April, 2019), and the metadata information in the data label adopts the PDS data dictionary PDS4 Data Dictionary: Abridged-Version" 1.12.0.0. The following is a description of the released level 2 data products.
4.1 Level 2 data product structure
Level 2 data products consist of two parts: data label and data objec:
- 1)A data product contains only one data label, but it can contain multiple data objects;
- 2)Data tags and data objects are stored as separate files;
- 3)The data label adopts the file of XML format.
- 4)Scientific data is expressed as data objects. The TW-1 mission includes six types of data including image data, spectral data, radar detection data, magnetic field detection data, space environment detection data, and sound data.
4.1.1 MOSIR data storage structure
Each level 2B data product includes a data label and a Table_Binary type data object for storing scientific data and geometric positioning information.
Table 4-1:MOSIR data storage structure description
product | Scientific data | tag |
Level 2B | Table_Binary | XML |
4.1.2 MINPA data storage structure
Each level 2B data product includes a data label and a Table_Character type data object for storing scientific data and geometric positioning information.
Table 4-2:MINPA data storage structure description
product | Scientific data | tag |
Level 2B | Table_Character | XML |
4.1.3 NaTeCam data storage structure
Each level 2C data product includes a data tag and an Array_3D_Image type data object for storing color images, the content of the frame header information and geometric positioning information.
Table 4-3:NaTeCam data storage structure description
product | Scientific data | tag | Array dimension |
Level 2C | Array_3D_Image | XML | Line, column, color |
4.1.4 RoPeR data storage structure
Each level 2B data product includes a data tag and a Table_Binary type data object for storing scientific data and geometric positioning information such as the position and attitude of the rover, and the landing point location information.
Table 4-4:RoPeR data storage structure description
product | Scientific data | tag |
Level 2B | Table_Binary | XML |
4.1.5 MarSCoDe data storage structure description
Each level 2B data product contains a data label and a Table_Character type data object for storing spectral data, and the content of geometric positioning information.
Table 4-5:MarSCoDe data storage structure description
product | Scientific data | tag |
Level 2B | Table_Character | XML |
4.1.6 MCS data storage structure
Each level 2C data product contains a data label and a Table_Character type data object for storing air temperature, pressure, wind field, and geometric information such as sun incident angle and azimuth angle, and position of the rover and the location of the landing site.
Table 4-6:MCS data storage structure description
product | Scientific data | tag |
Level 2C | Table_Character | XML |
4.1.7 MoRIC data storage structure
Each 2C-level data product includes a data tag, a data object of type Array_3D_Image for storing color images, a data object of type Table_Character for storing the geometric positioning grid of the image.
Table 4-7:MoRIC data storage structure description
Product | Scientific data | Geometric positioning grid | Tag | Array dimension |
Level 2C | Array_3D_Image | Table_Character | XML | Line, column, color |
4.1.8 MMS data storage structure
Each Level 2B data product includes a data tag, a data object of type Array_3D_Spectrum for storing scientific data, a data object of type Table_Character for storing scientific data frame headers (auxiliary data), and a data object of type Table_Character for storing scientific data Geometrically position grid data.
Table 4-8:MMS data storage structure description
Product | Scientific data | auxiliary data | Geometric positioning grid | Tag | Array dimension |
Level 2B | Array_3D_Spectrum | Table_Character | Table_Character | XML | Time、band、line |
4.1.9 MSCam data storage structure
Each 2B-level data product includes a data tag, a data object of type Array_2D_Image for storing the image.
Table 4-9:MSCam data storage structure description
Product | Scientific data | Tag |
Level 2B | Array_2D_Image | XML |
4.1.10 MEPA data storage structure
Each 2B-level data product includes a data tag, a data object of type Table_Character for storing the scientific data and geometric positioning information.
Table 4-10:MSCam data storage structure description
Product | Scientific data | Tag |
Level 2B | Table_Character | XML |
4.1.11 RoMAG data storage structure
Each 2C-level data product includes a data tag, a data object of type Table_Character for storing the scientific data.
Table 4-11:MSCam data storage structure description
Product | Scientific data | Tag |
Level 2C | Table_Character | XML |
4.1.12 HiRIC data storage structure
Each level 2B data product includes a data tag, a data object of type Array_2D_Image to store the scientific data, a data object of type Table_Character to store the geometrically positioned grid data, and a data object of type Table_Character to store the image frame header(auxiliary data);
Table 4-12:HiRIC data storage structure description
Product | Scientific data | Auxiliary data | Geometric position grid | Labal | Array dimension |
Level 2B | Array_2D_Image | Table_Character | Table_Character | XML | time (row), line |
4.1.13 MOMAG data storage structure
Each 2C-level data product includes a data tag, a data object of type Table_Character for storing color images.
Table 4-13:MOMAG data storage structure description
Product | Scientific data | Tag |
Level 2C | Table_Character | XML |
4.2 Tianwen-1 data type description
4.2.1 Binary data type
TW-1 data products using binary storage include UnsignedLSB4, UnsignedLSB2, SignedLSB2,UnsignedMSB4, UnsignedMSB2, UnsignedByte, IEEE754LSBSingle, IEEE754MSBSingle, UnsignedBitString.
4.2.2 Character data type
TW-1 data products stored in character type include ASCII_Real, ASCII_String, ASCII_Integer,ASCII_Date_Time_YMD_UTC,ASCII_Numeric_Base16. Attribute values of Table_character data and tag both use the above data types .
5.Product list appendix
5.1 Product list of HiRIC
Product level | Data product file name | Format | File description |
DEMDIM | HX1_GRAS_XXX_AAA_BBBB_ ddmmssNdddmmssE _V.tif | GeoTiff | Advanced data products |
HX1_GRAS_XXX_AAA_BBBB_ ddmmssNdddmmssE _V.tfw | tfw | Coordinate information file | |
HX1_GRAS_XXX_AAA_BBBB_ ddmmssNdddmmssE _V.prj | prj | Projection information file (ESRI format) |
Note: XXX represents the type of product data, that is, DEM or DIM ; AAA represents resolution; BBBB represents frame number; ddmmssNdddmmssE represents the latitude and longitude position of the center of the frame, dd/ddd is degrees, mm is minutes, ss Is the second, N represents the location of the north latitude (ie N) or south latitude (ie S) identification, E represents the longitude identification (ie E, represents the east longitude, the value range is 0 ~ 360 °); V represents the version number.
5.2 Product list of MOSIR
Product level | Data product file name | Format | File description |
2B | HX1-Or_GRAS_*** (-XXX)_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | Binary | Level 2B (Table_Binary) |
HX1-Or_GRAS_*** (-XXX)_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2BL | XML | Level 2B(data tag) | |
****represent MOSIR-VLF、MOSIR-H、MOSIR- HFR、MOSIR- LFR、MOSIR- HFI、及MOSIR- LFI |
Note: (-XXX) only for MOSIR-HFR and MOSIR-LFR data, corresponding to data with different time window sizes in different modes, such as MOSIR-HFR-095, corresponding to detection data with a time window size of 95μs in high frequency mode; MOSIR-LFR-120 , Corresponding to detection data with a time window of 120μs in low frequency mode; MOSIR-LFR-HFW, corresponding to high frequency waveform data in low frequency mode.
Level 2B:
MOSIR-H, represents altimetry data;
MOSIR-VLF, represents very low frequency detection data;
MOSIR-HFR, represents the original echo high-frequency data;
MOSIR- LFR, represents the original echo low-frequency data;
MOSIR-HFI, represents imaging echo high-frequency data (on-board processing result);
MOSIR-LFI, represents low-frequency imaging echo data (on-board processing result)
5.3 Product list of MINPA
Product level | Data product file name | Format | File description |
2B | HX1-Or_GRAS_*** _SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | ASCII | Level 2B(Table_Character) |
HX1-Or_GRAS_*** _SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2BL | XML | Level 2B(data tag) | |
***Refer to Note 1 for the specific naming and explanation of scientific data representing Mode 1~Mode 13 |
Note 1:
MINPA–MOD1-DEF, represents the default mode (table address 003300);
MINPA–MOD2-DEF, represents the default mode (table address F02D00);
MINPA–MOD3-HER, represents high energy resolution mode (table address 017400);
MINPA–MOD4-MT, represents the magnetic tail mode (table address 005F00);
MINPA–MOD5-LEI, represents low-energy ion mode (table address F13E00);
MINPA–MOD6-HTR, represents high time resolution mode (table address 01BD00);
MINPA–MOD7-FR, represents full resolution mode (table address 00AC00);
MINPA–MOD8-FR, represents full resolution mode (table address F0B000);
MINPA–MOD9-SW, represents solar wind mode (table address 00FF00);
MINPA–MOD10-SW, represents solar wind mode (table address F10300);
MINPA–MOD11-SW, represents solar wind mode (table address F06C00);
MINPA–MOD12-I, represents the ionospheric mode (table address 013A00);
MINPA–MOD13-NP, represents the neutral particle mode (table address 017100);
Note 2:
In addition to the above products, MINPA also includes a description file of calibration parameters. The file describes the correspondence between the pitch angle number and the angle center value and the center energy of ions and neutral particles in different modes. The file is named Calibration data description.pdf is quoted in the reference list field of the data label.
5.4 Product list of NaTeCam
Product level | Data product file name | File description |
2C | HX1-Ro_GRAS_pl2-XXX_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2C | Pl2 value:NaTeCamA-F: Full frame data of A cameraNaTeCamB-F: Full frame data of B cameraXXX is the frame count, the data in a detection period is automatically numbered in chronologic -al order, and the number is from 001 to 999 |
HX1-Ro_GRAS_pl2-XXX_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2CL |
5.5 Product list of RoPeR
Product level | Data product file name | Format | File description |
2B | HX1-Ro_GRAS_***_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | Binary | Level 2B(Table_Binary) |
HX1-Ro_GRAS_***_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2BL | XML | Level 2B(data tag) | |
***represent RoPeR-LF-R、RoPeR-LF-RI、RoPeR-HF-HH、RoPeR-HF-HV、RoPeR-HF-VH、RoPeR-HF-VV |
Level 2B:
RoPeR-LF-R, represents the real part mode data of the low frequency channel;
RoPeR-LF-RI, represents the real and imaginary mode data of the low-frequency channel;
RoPeR-HF-HH, represents the HH polarization data of the high frequency channel;
RoPeR-HF-HV, represents HV polarization data of high frequency channel;
RoPeR-HF-VH, represents the high frequency channel VH polarization data;
RoPeR-HF-VV, represents the high frequency channel VV polarization data.
5.6 Product list of MCS
Product level | Data product file name | Format | File description |
2C | HX1-Ro_GRAS_MCS-Tra_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ ob _ver.2CL | XML | 2C level conventional measurement mode data tag file |
HX1-Ro_GRAS_MCS-Tra_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ ob _ver.2C | ASCII | 2C level conventional measurement mode data | |
HX1-Ro_GRAS_MCS-Man_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ ob _ver.2C | XML | 2C level motorized measurement mode data tag file | |
HX1-Ro_GRAS_MCS-Man_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ ob _ver.2C | ASCII | 2C level maneuver measurement mode data |
Note: Ro represents the lander and rover; RPCU represents the Mars rover load controller; MCS-Tra represents conventional measurement data; MCS-Man represents maneuver measurement data; MCS-Audio represents sound data
5.7 Product list of MoRIC
Product level | Data product file name | File description |
2C | HX1-Or_GRAS_pl-XXXX_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2C | Pl valeuMoRIC-F:represents full-frame image dataMoRIC-S-2: represents 2:1 samplingMoRIC-S-4: represents 4:1 samplingMoRIC-S-8: represents 8:1 samplingMoRIC-W: represents windowing dataXXXX is the "output image frame number" of each image after framing, which can be obtained from the level 1 auxiliary dataGEO: Geometry position grid file |
HX1-Or_GRAS_pl-XXXX_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2CL | ||
HX1-Or_GRAS_pl-XXXX_GEO_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2C |
5.8 Product list of MMS
Product level | Data product file name | Format | File description |
2B | HX1-Or_GRAS_***_ty_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | Binary | Level 2B(Array_3D_Image) |
HX1-Or_GRAS_*** _ty_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2BL | XML格式 | Level 2B(data tag) | |
HX1-Or_GRAS_*** _AUX_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | ASCII码 | Level 2B(auxiliary data) | |
HX1-Or_GRAS_*** _GEO_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | ASCII码 | 2Level 2B(Geometry position grid file) | |
*** Take the value listed in "Class 2B file name" in the table aboveThe probe data ty field is "SCI", and the calibration data ty field is "CAL". Among them, for the data of MMS-C-S-V and MMS-C-S-N (including SCI and CAL), there is no corresponding GEO file |
5.9 Product list of MSCam
Product level | Data product file name | Format | File description |
2B级 | HX1-Ro_GRAS_MSCam-W-no-kk-xxxx- yy_ty_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | Binary | Level 2B data product (image data of type Array_2D_Image), no represents spectral channel, the value range is 1~8, that is, the 1st spectral channel to the 8th spectral channel, MSCam-W represents the windowing mode, xxxx is the frame count; yy It is the number of the detection point; ty takes SCI and CAL. |
HX1-Ro_GRAS_MSCam-W-no-kk-xxxx-yy_ty_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2BL | XML | Level 2B data tag | |
Note: There are no level 2B panchromatic channels products. |
MSCam-W-1 represents multispectral camera 1-channel data (windowed image data)
MSCam-W-2 represents the 2-channel data of the multispectral camera, and so on to the 8th channel (windowing image data)
MSCam-W-P represents multispectral camera panchromatic channel data (windowed image data)
5.10 Product list of MEPA
Product level | Data product file name | Format | File description |
2B级 | HX1-Or_GRAS_MEPA-LP_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2BL | XML | Light particle energy spectrum level 2B data |
HX1-Or_GRAS_MEPA-LP_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | ASCII | ||
HX1-Or_GRAS_MEPA-HP_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2BL | XML | Heavy ion level 2B data | |
HX1-Or_GRAS_MEPA-HP_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | ASCII |
5.11 Product list of RoMAG
Product level | Data product file name | Format | File description |
2C级 | HX1-Ro_GRAS_*** _SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2C | Binary | Level 2C(Table_ Character) |
HX1-Ro_GRAS_*** _SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2CL | XML | Level 2C(data tag) | |
****represent RoMAG-DB |
5.12 Product list of HiRIC
Product level | Data product file name | File description |
2B级 | HX1-Or_GRAS_plCCD_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | The values of PlCCD are as follows: : -F\-R\-G\-B\-V are the CCD panchromatic, red, green, blue, and near-infrared spectral bands respectively HiRIC-CCD1-F, HiRIC-CCD1-R, HiRIC-CCD1-G, HiRIC-CCD1-B, HiRIC-CCD1-V HiRIC-CCD2-F, HiRIC-CCD2-R, HiRIC-CCD2-G, HiRIC-CCD2-B, HiRIC-CCD2-V HiRIC-CCD3-F, HiRIC-CCD3-R, HiRIC-CCD3-G, HiRIC-CCD3-B, HiRIC-CCD3-V GEO is grid file AUX is the auxiliary data file -XXXX: image frame number, taken from the "frame number" in the level 1 auxiliary data |
HX1-Or_GRAS_plCCD_AUX_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B | ||
HX1-Or_GRAS_plCCD_SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2BL | ||
HX1-Or_GRAS_plCCD_GEO_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2B |
5.13 Product list of MOMAG
Product level | Data product file name | Format | File description |
2C | HX1-Or_GRAS_*** _SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2C | ASCII | Level 2C(Table_ Character) |
HX1-Or_GRAS_*** _SCI_N_yyyymmddhhmiss_YYYYMMDDHHMISS_ob_ver.2CL | XML | Level 2C(data tag) | |
**** represent MOMAG-DB as the detection data after background deduction |
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Acknowledgement:
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