285571 — IAA Minor Planet Database

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.4324411214 ± 8.16e-10
Semi-major axis (a)	1.9035657241 AU ± 5.85e-10
Inclination (i)	13.48266244° ± 1.16e-06
Long. of Asc. Node (Ω)	297.16245353° ± 7.40e-07
Arg. of Perihelion (ω)	7.05697041° ± 3.81e-06
Mean Anomaly (M)	231.96152491° ± 1.27e-06
Mean Motion (n)	0.3752843568°/day ± 1.73e-10
Perihelion dist (q)	1.08038563 AU ± 1.59e-09
Aphelion dist (Q)	2.72674582 AU ± 1.76e-09
Orbital Period	2.62634524 yr ± 1.21e-09

Physical Parameters

H (abs. magnitude)	18.65
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-05-31
RMS Residual	0.478″
Uncertainty	0
Orbit Type	Amor
MOID	0.064547 AU
Observations Used	7147
Radar Obs Used	1
Oppositions	13
Arc Total	2000-2021
First Observation Used	2000-08-09
Last Observation Used	2024-12-06

Observations (13272)

Date	Type	RA	Dec	Mag	Band	Observatory
2021-08-01 01:13:59	S	20 32 00.127	+20 56 55.64	–	V	C57
2021-08-01 01:13:59	s	1 -112086.56	6 +362209.20	5960.0	–	C57
2021-08-01 01:15:53	V	20 34 38.74	+21 39 39.5	14.1	V	247
2021-08-01 01:15:53	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:22:50	V	20 34 39.65	+21 40 23.3	14.4	V	247
2021-08-01 01:22:50	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:23:50	V	20 34 39.77	+21 40 29.5	14.7	V	247
2021-08-01 01:23:50	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:23:59	S	20 32 01.951	+20 57 56.30	–	V	C57
2021-08-01 01:23:59	s	1 -112413.68	1 +361975.02	4890.0	–	C57
2021-08-01 01:24:49	V	20 34 39.87	+21 40 35.6	14.6	V	247
2021-08-01 01:24:49	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:25:49	V	20 34 39.96	+21 40 41.3	14.4	V	247
2021-08-01 01:25:49	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:26:49	V	20 34 40.05	+21 40 47.1	14.7	V	247
2021-08-01 01:26:49	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:27:48	V	20 34 40.17	+21 40 52.6	14.5	V	247
2021-08-01 01:27:48	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:28:48	V	20 34 40.28	+21 40 59.5	14.1	V	247
2021-08-01 01:28:48	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:29:47	V	20 34 40.45	+21 41 06.9	13.9	V	247
2021-08-01 01:29:47	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:30:47	V	20 34 40.50	+21 41 10.9	14.1	V	247
2021-08-01 01:30:47	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:30:47	V	20 34 41.67	+21 41 31.8	15.5	V	247
2021-08-01 01:30:47	v	1 279.74313	+26.94155	–	–	247
2021-08-01 01:33:59	S	20 32 03.684	+20 58 54.55	–	V	C57
2021-08-01 01:33:59	s	1 -112740.51	0 +361739.88	2820.0	–	C57
2021-08-01 01:43:59	S	20 32 05.467	+20 59 53.23	–	V	C57
2021-08-01 01:43:59	s	1 -113067.05	2 +361503.81	9760.0	–	C57
2021-08-01 01:48:59	V	20 34 42.71	+21 43 04.7	14.7	V	247
2021-08-01 01:48:59	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:49:59	V	20 34 42.87	+21 43 11.0	14.1	V	247
2021-08-01 01:49:59	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:50:58	V	20 34 42.97	+21 43 16.9	14.2	V	247
2021-08-01 01:50:58	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:51:58	V	20 34 43.02	+21 43 22.8	14.1	V	247
2021-08-01 01:51:58	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:53:59	S	20 32 07.188	+21 00 51.62	–	V	C57
2021-08-01 01:53:59	s	1 -113393.30	5 +361266.79	5690.0	–	C57
2021-08-01 01:54:56	V	20 34 43.37	+21 43 40.6	14.3	V	247
2021-08-01 01:54:56	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:55:56	V	20 34 43.42	+21 43 45.7	14.5	V	247
2021-08-01 01:55:56	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:56:56	V	20 34 43.53	+21 43 51.9	14.5	V	247
2021-08-01 01:56:56	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:58:55	V	20 34 43.77	+21 44 04.1	14.5	V	247
2021-08-01 01:58:55	v	1 285.10202	+40.68184	–	–	247
2021-08-01 01:59:54	V	20 34 43.90	+21 44 10.4	14.4	V	247
2021-08-01 01:59:54	v	1 285.10202	+40.68184	–	–	247

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285571 (2000 PQ9)