MEX-X-MRS-1-2-3-EXT2-3525

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 20130513T05:03:35.500 to 20130513T07:14:56.000. 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 Mi 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）数据存档是按时间顺序收集的原始数据及部分处理数据集合，这些数据是在火星任务期间收集的。关于所提议的调查，请参阅MaRS用户手册MARSUSERMANUAL2004，位于MaRS文档夹/MRS_DOC中。本数据集涉及的时间跨度为20130513T05:03:35.500至20130513T07:14:56.000的太阳联合测量。此数据集是在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四种类型的科学测量：太阳联合测量、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火星全局重力测量，后者是在远地点附近进行的，目标重力测量是在火星近日点附近的有趣地质结构上进行的。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，目的是为了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 | 时间跨度：近地验证 | NEV | 20030602 - 20030731 巡航1 | CR1 | 20030801 - 20031225 [截断！请参阅实际数据以获取完整文本][截断！请参阅实际数据以获取完整文本]。