IAA RAS IAA Minor Planet Database

285571 (2000 PQ9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
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 Period2.62634524 yr ± 1.21e-09
Physical Parameters
H (abs. magnitude)18.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.478″
Uncertainty0
Orbit TypeAmor
MOID0.064547 AU
Observations Used7147
Radar Obs Used1
Oppositions13
Arc Total2000-2021
First Observation Used2000-08-09
Last Observation Used2024-12-06
Observations (13272)
Date Type RA Dec Mag Band Observatory
2021-08-05 07:33:59 S 20 48 56.203 +29 50 10.72 – V C57
2021-08-05 07:33:59 s 1 -176317.10 6 +23955.766 6540.0 – C57
2021-08-05 07:37:10 V 20 46 54.54 +30 16 18.9 14.6 V 247
2021-08-05 07:37:10 v 1 276.64224 +33.90559 – – 247
2021-08-05 07:38:10 V 20 46 54.61 +30 16 23.2 14.7 V 247
2021-08-05 07:38:10 v 1 276.64224 +33.90559 – – 247
2021-08-05 07:39:10 V 20 46 54.70 +30 16 27.2 14.8 V 247
2021-08-05 07:39:10 v 1 276.64224 +33.90559 – – 247
2021-08-05 07:40:09 V 20 46 54.76 +30 16 31.4 14.9 V 247
2021-08-05 07:40:09 v 1 276.64224 +33.90559 – – 247
2021-08-05 07:41:09 V 20 46 54.87 +30 16 35.1 15.1 V 247
2021-08-05 07:41:09 v 1 276.64224 +33.90559 – – 247
2021-08-05 07:42:08 V 20 46 54.95 +30 16 39.3 15.3 V 247
2021-08-05 07:42:08 v 1 276.64224 +33.90559 – – 247
2021-08-05 07:43:59 S 20 48 57.622 +29 51 00.32 – V C57
2021-08-05 07:43:59 s 1 -175902.67 5 +23079.447 2120.0 – C57
2021-08-05 07:46:06 V 20 46 55.49 +30 16 53.6 15.3 V 247
2021-08-05 07:46:06 v 1 276.64224 +33.90559 – – 247
2021-08-05 07:47:06 V 20 46 55.57 +30 16 57.6 15.2 V 247
2021-08-05 07:47:06 v 1 276.64224 +33.90559 – – 247
2021-08-05 07:53:59 S 20 48 58.992 +29 51 50.04 – V C57
2021-08-05 07:53:59 s 1 -175484.31 6 +22202.616 5260.0 – C57
2021-08-05 08:03:59 S 20 49 00.391 +29 52 39.50 – V C57
2021-08-05 08:03:59 s 1 -175062.00 4 +21325.291 5860.0 – C57
2021-08-05 08:13:59 S 20 49 01.711 +29 53 28.68 – V C57
2021-08-05 08:13:59 s 1 -174635.71 4 +20447.486 3860.0 – C57
2021-08-05 08:23:59 S 20 49 03.038 +29 54 17.64 – V C57
2021-08-05 08:23:59 s 1 -174205.42 0 +19569.218 9180.0 – C57
2021-08-05 08:33:59 S 20 49 04.423 +29 55 07.64 – V C57
2021-08-05 08:33:59 s 1 -173771.09 7 +18690.501 1730.0 – C57
2021-08-05 08:43:59 S 20 49 05.770 +29 55 55.31 – V C57
2021-08-05 08:43:59 s 1 -173332.71 8 +17811.353 1430.0 – C57
2021-08-05 08:53:59 S 20 49 07.130 +29 56 43.84 – V C57
2021-08-05 08:53:59 s 1 -172890.25 6 +16931.791 8200.0 – C57
2021-08-05 09:03:59 S 20 49 08.474 +29 57 34.16 – V C57
2021-08-05 09:03:59 s 1 -172443.68 7 +16051.831 1960.0 – C57
2021-08-05 09:13:59 S 20 49 09.792 +29 58 22.40 – V C57
2021-08-05 09:13:59 s 1 -171992.98 2 +15171.490 2630.0 – C57
2021-08-05 09:23:59 S 20 49 11.174 +29 59 12.88 – V C57
2021-08-05 09:23:59 s 1 -171538.11 5 +14290.787 120.0 – C57
2021-08-05 09:33:59 S 20 49 12.432 +30 00 01.01 – V C57
2021-08-05 09:33:59 s 1 -171079.06 0 +13409.740 4350.0 – C57
2021-08-05 09:43:59 S 20 49 13.819 +30 00 51.80 – V C57
2021-08-05 09:43:59 s 1 -170615.78 8 +12528.367 5230.0 – C57
2021-08-05 09:53:59 S 20 49 15.094 +30 01 40.40 – V C57
2021-08-05 09:53:59 s 1 -170148.27 3 +11646.687 2690.0 – C57
2021-08-05 10:03:59 S 20 49 16.373 +30 02 28.97 – V C57
2021-08-05 10:03:59 s 1 -169676.48 7 +10764.720 6630.0 – C57
2021-08-05 10:13:59 S 20 49 17.803 +30 03 20.56 – V C57
2021-08-05 10:13:59 s 1 -169200.40 3 + 9882.484 6970.0 – C57
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-07-23 05:30:00 67479907 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)