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VLBI observations to the APOD satellite
Sun, Jing1,2; Tang, Geshi1; Shu, Fengchun3; Li, Xie1; Liu, Shushi1; Cao, Jianfeng1; Hellerschmied, Andreas4; Boehm, Johannes4; McCallum, Lucia5; McCallum, Jamie5; Lovell, Jim5; Haas, Ruediger6; Neidhardt, Alexander7; Lu, Weitao1; Han, Songtao1; Ren, Tianpeng1; Chen, Lue1; Wang, Mei1; Ping, Jinsong8
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The APOD (Atmospheric density detection and Precise Orbit Determination) is the first LEO (Low Earth Orbit) satellite in orbit co-located with a dual-frequency GNSS (GPS/BD) receiver, an SLR reflector, and a VLBI X/S dual band beacon. From the overlap statistics between consecutive solution arcs and the independent validation by SLR measurements, the orbit position deviation was below 10 cm before the on-board GNSS receiver got partially operational. In this paper, the focus is on the VLBI observations to the LEO satellite from multiple geodetic VLBI radio telescopes, since this is the first implementation of a dedicated VLBI transmitter in low Earth orbit. The practical problems of tracking a fast moving spacecraft with current VLBI ground infrastructure were solved and strong interferometric fringes were obtained by cross-correlation of APOD carrier and DOR (Differential One-way Ranging) signals. The precision in X-band time delay derived from 0.1 s integration time of the correlator output is on the level of 0.1 ns. The APOD observations demonstrate encouraging prospects of co-location of multiple space geodetic techniques in space, as a first prototype. (C) 2017 Published by Elsevier Ltd on behalf of COSPAR.

Correspondent Emailsunjing@shao.ac.cn
KeywordApod Vlbi Gnss Slr Space Ties
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS KeywordGeodetic Vlbi
WOS Research AreaAstronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS SubjectAstronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS IDWOS:000424179100004
Funding OrganizationAuScope Ltd under the National Collaborative Research Infrastructure Strategy (NCRIS), an Australian Commonwealth Government Programme ; Austrian Science Fund (FWF)(SORTS I 2204, J 3699-N29)
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorSun, Jing
Affiliation1.Beijing Aerosp Control Ctr, 26 Beiqing Rd, Beijing 100094, Peoples R China
2.Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China
3.Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
4.Tech Univ Wien, Gusshausstr 27-29, A-1040 Vienna, Austria
5.Univ Tasmania, Private Bag 37, Hobart, Tas 7001, Australia
6.Chalmers Univ Technol, Onsala Space Observ, S-43992 Onsala, Sweden
7.Tech Univ Munich, Geodet Observ Wettzell, Munich, Germany
8.Natl Astron Observ, 20 A Datun Rd, Beijing 100012, Peoples R China
First Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Sun, Jing,Tang, Geshi,Shu, Fengchun,et al. VLBI observations to the APOD satellite[J]. ADVANCES IN SPACE RESEARCH,2018,61(3):823-829.
APA Sun, Jing.,Tang, Geshi.,Shu, Fengchun.,Li, Xie.,Liu, Shushi.,...&Ping, Jinsong.(2018).VLBI observations to the APOD satellite.ADVANCES IN SPACE RESEARCH,61(3),823-829.
MLA Sun, Jing,et al."VLBI observations to the APOD satellite".ADVANCES IN SPACE RESEARCH 61.3(2018):823-829.
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