MEX-M-MRS-1-2-3-EXT2-3706

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 proposed see the MaRS User Manual MARSUSERMANUAL2004 in the MaRS DOCUMENT/MRS_DOC folder. This is a Occultation measurement covering the time 20150305T08:51:20.500 to 20150305T09:17:05.949. This data set was collected during the MEX Extended Mission Phase 2 (EXT2) 2007 to tbd. 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 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）无线电科学（MaRS）数据存档是一系列按时间顺序排列的原始及部分处理数据，这些数据是在火星快车号任务期间收集的。有关所提议的调查信息，请参阅MaRS用户手册MARSUSERMANUAL2004，该手册位于MaRS文档夹/MRS_DOC中。本数据集覆盖了20150305T08:51:20.500至20150305T09:17:05.949的时间段的掩星测量。该数据集是在火星快车号扩展任务阶段2（EXT2）2007年至待定期间收集的。在扩展任务期间进行了四种类型的科学测量：太阳联合、掩星、双站雷达和重力测量。在这些测量中，需要区分在火星卫星火卫一上进行的重力测量、在火星的近拱点附近进行的全球重力测量，以及在对地球引力中心附近的有趣地质结构上进行的地球引力测量。更多信息请参见INST.CAT或MaRS用户手册MARSUSERMANUAL2004。对于所有测量，除非另有说明，否则使用在航天器上的应答器1。应答器2被设计为备用。任务阶段定义
应注意的是，火星快车号（MEX）无线电科学（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有所不同，以保持火星快车号和罗塞塔号的关键词和缩写的一致性。对于金星快车号，则使用其他定义。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
近地验证 | NEV | 20030602 - 20030731
巡航1 | CR1 | 20030801 - 20031225
任务被截断！请查看实际数据以获取完整文本[任务被截断！请查看实际数据以获取完整文本]