Results 141 to 150 of about 41,139 (300)
A Real-Time Detection Method for BDS Signal in Space Anomalies
Sensors, 2019 Signal In Space (SIS) anomalies in satellite navigation systems can degrade satellite-based navigation and positioning performance. The occurrence of SIS anomalies from the BeiDou navigation satellite System (BDS) may be more frequent than for the Global
Chun Cheng +3 more
doaj +1 more source
Absolute Timing of the Crab Pulsar with RXTE
, 2004 We have monitored the phase of the main X-ray pulse of the Crab pulsar with the Rossi X-ray Timing Explorer (RXTE) for almost eight years, since the start of the mission in January 1996. The absolute time of RXTE's clock is sufficiently accurate to allow
Andrew G. Lyne +6 more
core +1 more source
A new ephemeris and an orbital solution of ε Aurigae [PDF]
2010IBVS.5937....1C, 2010 We collected rich series of RV measurements covering last 110 years and photometric observations from the past 6 primary eclipses, complemented them by our new observations and derived a new precise ephemeris and an orbital solution of epsilon Aur.
arxiv
Applied SciencesThis study addresses the issue of atmospheric delay correction for the rational polynomial coefficient (RPC) model associated with spaceborne synthetic aperture radar (SAR) imagery under conditions lacking ephemeris data, proposing a novel approach to ...
Doudou Hu +3 more
doaj +1 more source
Bibliothèque de l'école des chartes, 1910 Léonard Émile-G. Ephemeris Campanographica. In: Bibliothèque de l'école des chartes. 1910, tome 71. pp. 479-480.
openaire +2 more sources
Ephemeris, orbital decay, and masses of ten eclipsing high-mass X-ray binaries
, 2015 We update the ephemeris of the eclipsing high-mass X-ray binary (HMXB) systems LMC X-4, Cen X-3, 4U 1700-377, 4U 1538-522, SMC X-1, IGR J18027-2016, Vela X-1,IGR J17252-3616, XTE J1855-026, and OAO 1657-415 with the help of more than ten years of ...
M. Falanga +5 more
semanticscholar +1 more source
PREDIKSI PERGERAKAN BAYANGAN BUMI SAAT TERJADI GERHANA BULAN MENGGUNAKAN EPHEMERIS HISAB RUKYAT
ELFALAKY, 2018 In this era, the prediction of lunar eclipse can be determined accurately with the astronomical data based algorithm. Usually, the prediction just compute the position and time of lunar eclipse without considered the movement of Earth shadow in the ...
M. Azmi
semanticscholar +1 more source
Ballistic Coefficient Calculation Based on Optical Angle Measurements of Space Debris. [PDF]
Sensors (Basel), 2023 Ding Y +6 more
europepmc +1 more source