Astronomy
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Rafa
  • Member for 2 years, 4 months
  • Last seen more than a month ago
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Top posts
question
5
Discrepancy in Horizons planet ephemerides for equivalent times in TT and UTC in dates during 1969
Mar 4, 2022
answer
4
For how many solar system bodies do recent JPL Development Ephemerides include libration?
Jan 22, 2022
question
4
Discrepancy between my calculated planet JPL ephemerides and those by Horizons online app
Jan 20, 2022
question
3
Is there an official recommended expression for Doodson arguments?
Jan 25, 2022
question
3
Calculating velocity of Earth from JPL DE
Mar 2, 2022
answer
2
Is there an official recommended expression for Doodson arguments?
Mar 8, 2022
question
2
Conversion of seconds since J2000 epoch Terrestrial Time to UTC time
Dec 6, 2021
Top network posts
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18
How can we determine the most appropriate central body for orbit propagation?
15
Are there multiple types of UTC time?
12
Why are uncertainties of orbital state vectors provided as covariance matrixes?
9
Are there any sources with high-confidence state vectors for GRAIL-A?
8
How is the Celestial Ephemeris Pole (CEP) exactly defined?