MEX-X-MRS-1-2-3-EXT7-4058

Data Set Overview The Mars Express (MEX) Radio Science (MaRS) Data Archive is a timeordered collection of raw and partially processed data collected during the MEX Mission to Mars. For more information on the investigations see the MaRS User Manual MARSUSERMANUAL2004 in the MaRS DOCUMENT/MRS_DOC folder. This is a Solar Conjunction measurement covering the time 20190914T07:16:23.000 to 20190914T08:43:10.500. This data set was collected during the MEX Extended Mission Phase 7 (EXT7) 2019 to 2020. There were four types of scientific measurements conducted during Extended Mission: Solar Conjunction, Occultation, Bistatic Radar and Gravity where one has to distinguish between gravity measurements conducted on Phobos as well as global gravity measurements on Mars which were conducted around apocenter and target gravity measurements on Mars which were conducted around pericenter over interesting geophysical structures. For more information see INST.CAT or the MaRS User Manual MARSUSERMANUAL2004. For all measurements if not indicated otherwise Transponder 1 onboard the s/c was used. Transponder 2 is designed to be a backup. Mission Phase Definition It should be noted that the Mars Express (MEX) Radio Science (MaRS) group uses mission phases which deviate from the ones defined in the MISSION.CAT files given by ESA in order to keep the keywords and abbreviations consistent for Mars Express, and Rosetta. For Venus Express other definitions are used. Those mission phase abbreviations are also used in the data description field of the dataset_id. MaRS mission name | abbreviation | time span Near Earth Verification | NEV | 20030602 20030731 Cruise 1 | CR1 | 20030801 20031225 Mission Co truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]

数据集概览：火星快车号（Mars Express，简称MEX）射电科学（MaRS）数据存档是一系列按时间顺序排列的原始数据及部分处理数据，这些数据是在火星任务期间收集的。有关调查的更多信息，请参阅MaRS用户手册MARSUSERMANUAL2004，该手册位于MaRS文档/MRS_DOC文件夹中。该数据集涵盖了20190914T07:16:23.000至20190914T08:43:10.500期间的太阳 conjunction 测量。该数据集是在2019至2020年的MEX扩展任务阶段7（EXT7）期间收集的。在扩展任务期间进行了四种类型的科学测量：太阳 conjunction、掩星、双站雷达和重力测量，其中需要区分在火卫一上进行的重力测量以及火星全球重力测量（在远日点附近进行）、火星上的目标重力测量（在近日点附近针对有趣的地球物理结构进行）。有关更多信息，请参阅INST.CAT或MaRS用户手册MARSUSERMANUAL2004。除非另有说明，否则所有测量均使用了搭载在航天器上的应答器1。应答器2设计为备用。任务阶段定义：值得注意的是，火星快车号（MEX）射电科学（MaRS）小组使用的任务阶段与ESA提供的MISSION.CAT文件中定义的任务阶段不同，以便保持火星快车号、罗塞塔号的关键词和缩写的一致性。对于金星快车号，使用其他定义。这些任务阶段缩写也用于dataset_id的数据描述字段中。MaRS任务名称 | 缩写 | 时间范围
火星快车号 MaRS任务 | NEV | 20030602 - 20030731
巡航1 | CR1 | 20030801 - 20031225
任务Co缩写，请参阅实际数据以获取全文[缩写，请参阅实际数据以获取全文]