Timeline for Why is there a 38.6 km Earth-Moon distance difference between Ephemeris types "Observer table" and "Vector table" on Horizons Web Application?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| Dec 14, 2022 at 16:28 | history | bounty ended | Cornelis | ||
| Dec 7, 2022 at 15:21 | comment | added | PM 2Ring |
@Cornelis Just put UT after the Start time. See ssd.jpl.nasa.gov/horizons/manual.html#time
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| Dec 7, 2022 at 3:05 | history | edited | PM 2Ring | CC BY-SA 4.0 |
Added LT+S table, and more info from Horizons docs.
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| Dec 6, 2022 at 16:43 | history | edited | PM 2Ring | CC BY-SA 4.0 |
Added plot & plotting script.
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| Dec 5, 2022 at 11:08 | comment | added | PM 2Ring | @Cornelis Sorry, I just mentioned it as a vague possibility. My motivation is that the distance from the SSB to the Earth-Moon system is ~500 light-seconds. Maybe the difference in Earth & Moon positions between geometric & light-corrected versions is somehow affected by that 500 light-seconds, not just the few light-seconds between the Earth & Moon. | |
| Dec 5, 2022 at 10:47 | comment | added | Cornelis | That 's a clear comparison between the different tables. It's also clear for me now that the time difference of about 40 sec, cannot be the problem since 1 min. after pericynthion the distance has only become a few hundred m. larger. I'm interested if you can explain why the Solar System barycentre could make a difference. | |
| Dec 5, 2022 at 9:17 | history | answered | PM 2Ring | CC BY-SA 4.0 |