MEX-X-MRS-1-2-3-EXT2-3540

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 Solar Conjunction measurement covering the time 20130409T07:36:09.500 to 20130409T09:17:06.500. This data set was collected during the MEX Extended Mission Phase 2 (EXT2) 2007 to tbd. There were three types of scientific measurements conducted during Extended Mission: Occultation, Bistatic Radar and Gravity where one has to distinguish between global gravity measurements which were conducted around apocenter and target gravity measurements 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 Commissioning | MCO | 20031226 20040630 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（Mars Express，简称MEX）无线电科学（MaRS）数据档案是一个按时间顺序排列的原始数据及部分处理数据的集合，这些数据是在火星快车任务期间收集的。关于拟议的研究，请参阅MaRS用户手册MARSUSERMANUAL2004，位于MaRS文档/MRS_DOC文件夹中。这是一次关于太阳 conjunction 的测量，时间跨度为20130409T07:36:09.500至20130409T09:17:06.500。该数据集是在MEX扩展任务第二阶段（EXT2）2007年至待定期间收集的。在扩展任务期间进行了三种类型的科学测量：掩星、双站雷达和重力测量。其中需要区分全球重力测量（在远日点附近进行）和目标重力测量（在近日点附近对感兴趣的地球物理结构进行）。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 应注意，火星快车（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dataset_id的数据描述字段中。MaRS任务名称 | 简称 | 时间跨度 近地验证 | NEV | 20030602 - 20030731 飞船1 | CR1 | 20030801 - 20031225 任务部署 | MCO | 20031226 - 20040630 [截断！请参阅实际数据以获取完整内容][截断！请参阅实际数据以获取完整内容]