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
2021-08-01 20:43:59 S 20 35 24.485 +22 47 55.07 V C57
2021-08-01 20:43:59 s 1 -148098.55 3 +328333.68 2120.0 C57
2021-08-01 20:53:59 S 20 35 26.282 +22 48 50.80 V C57
2021-08-01 20:53:59 s 1 -148383.66 1 +327987.05 7820.0 C57
2021-08-01 20:57:18 C 20 37 09.02 +23 35 06.9 V 089
2021-08-01 21:00:37 C 20 37 09.35 +23 35 25.8 V 089
2021-08-01 21:03:55 C 20 37 09.67 +23 35 44.6 V 089
2021-08-01 21:03:59 S 20 35 27.998 +22 49 46.31 V C57
2021-08-01 21:03:59 s 1 -148668.32 8 +327639.45 2050.0 C57
2021-08-01 21:07:13 C 20 37 10.07 +23 36 03.2 V 089
2021-08-01 21:10:32 C 20 37 10.42 +23 36 22.0 V 089
2021-08-01 21:13:51 C 20 37 10.79 +23 36 40.6 V 089
2021-08-01 21:13:59 S 20 35 29.705 +22 50 40.67 V C57
2021-08-01 21:13:59 s 1 -148952.55 2 +327290.85 4790.0 C57
2021-08-01 21:17:10 C 20 37 11.13 +23 36 59.6 V 089
2021-08-01 21:20:29 C 20 37 11.49 +23 37 18.2 V 089
2021-08-01 21:23:59 S 20 35 31.452 +22 51 36.61 V C57
2021-08-01 21:23:59 s 1 -149236.33 2 +326941.28 6030.0 C57
2021-08-01 21:27:07 C 20 37 12.19 +23 37 55.7 V 089
2021-08-01 21:33:59 S 20 35 33.199 +22 52 32.38 V C57
2021-08-01 21:33:59 s 1 -149519.66 6 +326590.72 5790.0 C57
2021-08-01 21:43:59 S 20 35 34.920 +22 53 28.07 V C57
2021-08-01 21:43:59 s 1 -149802.55 2 +326239.17 4040.0 C57
2021-08-01 21:53:20 C 20 37 16.82 +23 40 26.5 q 104
2021-08-01 21:53:59 S 20 35 36.667 +22 54 22.64 V C57
2021-08-01 21:53:59 s 1 -150084.98 9 +325886.64 790.0 C57
2021-08-01 21:56:07 C 20 37 17.11 +23 40 42.3 q 104
2021-08-01 21:59:02 C 20 37 17.42 +23 40 58.8 q 104
2021-08-01 22:03:59 S 20 35 38.393 +22 55 17.98 V C57
2021-08-01 22:03:59 s 1 -150366.97 6 +325533.12 6020.0 C57
2021-08-01 22:13:59 S 20 35 40.130 +22 56 12.91 V C57
2021-08-01 22:13:59 s 1 -150648.51 0 +325178.62 9750.0 C57
2021-08-01 22:23:59 S 20 35 41.863 +22 57 07.99 V C57
2021-08-01 22:23:59 s 1 -150929.59 0 +324823.13 1950.0 C57
2021-08-01 22:33:59 S 20 35 43.574 +22 58 02.42 V C57
2021-08-01 22:33:59 s 1 -151210.21 5 +324466.65 2620.0 C57
2021-08-01 22:39:50 C 20 37 16.89 +23 44 47.6 V 186
2021-08-01 22:40:53 C 20 37 17.02 +23 44 53.3 V 186
2021-08-01 22:43:59 S 20 35 45.384 +22 58 58.80 V C57
2021-08-01 22:43:59 s 1 -151490.38 3 +324109.18 1770.0 C57
2021-08-01 22:53:34 n 20 37 24.00 +23 45 50.6 q Z92
2021-08-01 22:53:59 S 20 35 46.963 +22 59 51.50 V C57
2021-08-01 22:53:59 s 1 -151770.09 3 +323750.73 9380.0 C57
2021-08-01 22:58:39 C 20 37 24.54 +23 46 22.5 V Z80
2021-08-01 22:59:39 C 20 37 24.63 +23 46 28.3 V Z80
2021-08-01 23:00:39 C 20 37 24.75 +23 46 34.0 V Z80
2021-08-01 23:05:58 n 20 37 25.37 +23 47 00.5 q Z92
2021-08-01 23:13:59 S 20 35 50.568 +23 01 43.39 V C57
2021-08-01 23:13:59 s 1 -152328.12 9 +323030.85 9980.0 C57
2021-08-01 23:19:26 n 20 37 26.85 +23 48 16.3 q Z92
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)