21531 Billcollin
Ilme
asteroid
eelneb
21530 Despiau[4]
järgneb
(21532) 1998 OY
oluline sündmus
Nimepanek
avastamise aeg
20. juuli 1998[3]
minor planet group
parent astronomical body
apoapsis
2,962 astronoomiline ühik[7]
periapsis
2,5591831 astronoomiline ühik[7]
argument of periapsis
222,67627 kraad[7]
orbital inclination
6,10454 kraad[7]
semi-major axis of an orbit
2,7603461 astronoomiline ühik[7]
longitude of ascending node
264,68188 kraad[7]
albedo
diameter
6,283±0,045 kilomeeter[3]
epoch
September 13, 2023[3]
time of periapsis
Viited
- ↑ Freebase Data Dumps, 28. oktoober 2013
- ↑ JPL Small-Body Database, 21. detsember 2023
- ↑ 3,00 3,01 3,02 3,03 3,04 3,05 3,06 3,07 3,08 3,09 3,10 3,11 3,12 JPL Small-Body Database, 20021531, https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=20021531, 21. detsember 2023
- ↑ 4,0 4,1 Minor Planet Center Database
- ↑ JPL Small-Body Database
- ↑ 6,0 6,1 6,2 6,3 6,4 6,5 6,6 6,7 JPL Small-Body Database, 20021531, https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=20021531, 19. veebruar 2024
- ↑ 7,00 7,01 7,02 7,03 7,04 7,05 7,06 7,07 7,08 7,09 https://www.minorplanetcenter.net/db_search/show_object?object_id=21531