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VLBI observations t...
VLBI observations to the APOD satellite
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- Sun, Jing (författare)
- Chinese Academy of Sciences,Beijing Aerospace Flight Control Center
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- Tang, Geshi (författare)
- Beijing Aerospace Flight Control Center
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- Shu, Fengchun (författare)
- Shanghai Astronomical Observatory. Chinese Academy of Sciences,Shanghai Astronomical Observatory Chinese Academy of Sciences
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- Li, Xie (författare)
- Beijing Aerospace Flight Control Center
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- Liu, Shushi (författare)
- Beijing Aerospace Flight Control Center
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- Cao, Jianfeng (författare)
- Beijing Aerospace Flight Control Center
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- Hellerschmied, Andreas (författare)
- Technische Universität Wien,Vienna University of Technology
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- Böhm, Johannes (författare)
- Technische Universität Wien,Vienna University of Technology
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- McCallum, Lucia (författare)
- University of Tasmania
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- McCallum, Jamie (författare)
- University of Tasmania
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- Lovell, Jim (författare)
- University of Tasmania
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- Haas, Rüdiger, 1966 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Neidhardt, Alexander (författare)
- Technische Universität München (TUM),Technical University of Munich (TUM)
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- Lu, Weitao (författare)
- Beijing Aerospace Flight Control Center
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- Han, SongTao (författare)
- Beijing Aerospace Flight Control Center
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- Ren, Tianpeng (författare)
- Beijing Aerospace Flight Control Center
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- Chen, Lue (författare)
- Beijing Aerospace Flight Control Center
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- Wang, Mei (författare)
- Beijing Aerospace Flight Control Center
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- Ping, Jinsong (författare)
- Chinese Academy of Sciences
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(creator_code:org_t)
- Elsevier BV, 2018
- 2018
- Engelska.
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Ingår i: Advances in Space Research. - : Elsevier BV. - 1879-1948 .- 0273-1177. ; 61:3, s. 823-829
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- VLBI
- SLR
- APOD
- GNSS
- Space ties
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Sun, Jing
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Tang, Geshi
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Shu, Fengchun
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Li, Xie
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Liu, Shushi
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Cao, Jianfeng
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Hellerschmied, A ...
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Böhm, Johannes
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McCallum, Lucia
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McCallum, Jamie
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Lovell, Jim
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Haas, Rüdiger, 1 ...
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Neidhardt, Alexa ...
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Lu, Weitao
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Han, SongTao
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Ren, Tianpeng
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Chen, Lue
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Wang, Mei
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Ping, Jinsong
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