MEX-M-MRS-1-2-3-EXT7-3997

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 Occultation measurement covering the time 20190420T03:40:00.000 to 20190420T05:25:00.000. 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 Commissi 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）数据档案库收录了在火星任务期间收集的原始及部分处理数据的时间序列集合。有关调查的详细信息，请参阅MaRS用户手册MARSUSERMANUAL2004，该手册位于MaRS文档夹的MRS_DOC文件夹中。本数据集涵盖了20190420T03:40:00.000至20190420T05:25:00.000期间进行的掩星测量。此数据集收集于MEX扩展任务第七阶段（EXT7）2019至2020年期间。在扩展任务期间进行了四种类型的科学测量：日食、掩星、双站雷达和重力测量。其中，需区分在火卫一上进行的重力测量以及在全球性火星重力测量（在火星远日点附近进行）和火星近日点附近的特定目标重力测量（在有趣的地球物理结构附近进行）。更多信息请参阅INST.CAT或MaRS用户手册MARSUSERMANUAL2004。对于所有测量，除非另有说明，否则使用卫星上的应答器1。应答器2设计为备份。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文件中定义的阶段有所不同，以保持火星快车和罗塞塔的关键词和缩写的一致性。对于金星快车，则使用其他定义。这些任务阶段缩写也用于数据集ID的数据描述字段中。MaRS任务名称 | 缩写 | 时间范围：近地验证 | NEV | 20030602 - 20030731 飞行阶段1 | CR1 | 20030801 - 20031225 [内容截断，请参阅实际数据以获取全文][内容截断，请参阅实际数据以获取全文]。