MEX-X-MRS-1-2-3-PRM-0147

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 20040818T14:15:00 to 20040818T17:45:00. This data set was collected during the MEX Mission Prime Mission Phase (PRM) 20042005. This is a measurement of the radio sounding of the Solar Corona. It was done during the first solar conjunction season from 20040816 to 20041022. There were three types of scientific measurements conducted during PRM: 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, Venus Express and Rosetta. 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 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）射电科学（MaRS）数据存档是一组按时间顺序排列的原始数据及部分处理数据，这些数据是在火星快车任务期间收集的。有关提出的调查信息，请参阅MaRS用户手册MARSUSERMANUAL2004，位于MaRS文档夹下的MRS_DOC文件夹。该数据集涵盖了20040818T14:15:00至20040818T17:45:00期间的太阳 conjunction 测量。该数据集是在20042005年的火星快车任务首要阶段（PRM）期间收集的。这是一项对太阳色球层的射电探测测量，它是在20040816至20041022的第一个太阳 conjunction 季节进行的。在PRM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，其中需区分在远地点附近进行的全球重力测量和在近地点附近针对有趣的地物理结构进行的目标重力测量。更多详细信息请参阅INST.CAT或MaRS用户手册MARSUSERMANUAL2004。除非另有说明，所有测量均使用搭载在卫星上的应答器1进行。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（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有所不同，以便保持火星快车、金星快车和罗塞塔的关键词和缩写的一致性。这些任务阶段缩写也用于dataset_id的数据描述字段。MaRS任务名称 | 缩写 | 时间范围
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内容]