MEX-M-MRS-1-2-3-EXT7-3984

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 20190403T07:47:26.100 to 20190403T08:09:34.449. 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（Mars Express，简称MEX）无线电科学（MaRS）数据档案库是按照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。关于调查的更多信息，请参阅MaRS用户手册MARSUSERMANUAL2004，该手册位于MaRS文档夹下的MRS_DOC文件夹中。本数据集覆盖了20190403T07:47:26.100至20190403T08:09:34.449的时间段，为掩星测量。该数据集是在MEX扩展任务阶段7（EXT7）2019至2020年期间收集的。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。在重力测量方面，需区分在火卫一上进行的重力测量以及在全球范围内进行的火星重力测量，后者是在远地点附近进行的，而在火星上进行的局部重力测量则是在近日点附近针对有趣的地球物理结构进行的。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设计为备用。任务阶段定义：值得注意的是，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文件中定义的阶段不同，以便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，使用的是其他定义。这些任务阶段的缩写也用于数据集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
巡航1 | CR1 | 20030801 - 20031225
任务阶段定义截断！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]。