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
2021-08-02 17:53:59 S 20 39 03.509 +24 42 03.06 – V C57
2021-08-02 17:53:59 s 1 -180197.73 9 +276275.07 1490.0 – C57
2021-08-02 18:03:59 S 20 39 05.201 +24 42 55.58 – V C57
2021-08-02 18:03:59 s 1 -180412.34 8 +275799.38 3860.0 – C57
2021-08-02 18:13:59 S 20 39 06.886 +24 43 48.07 – V C57
2021-08-02 18:13:59 s 1 -180626.26 8 +275322.63 3970.0 – C57
2021-08-02 18:23:59 S 20 39 08.602 +24 44 41.06 – V C57
2021-08-02 18:23:59 s 1 -180839.49 4 +274844.83 1800.0 – C57
2021-08-02 18:43:59 S 20 39 12.024 +24 46 24.64 – V C57
2021-08-02 18:43:59 s 1 -181263.85 8 +273886.06 640.0 – C57
2021-08-02 18:53:59 S 20 39 13.735 +24 47 16.94 – V C57
2021-08-02 18:53:59 s 1 -181474.99 1 +273405.09 1620.0 – C57
2021-08-02 19:03:59 S 20 39 15.437 +24 48 09.90 – V C57
2021-08-02 19:03:59 s 1 -181685.42 1 +272923.06 300.0 – C57
2021-08-02 19:13:59 S 20 39 17.138 +24 49 02.75 – V C57
2021-08-02 19:13:59 s 1 -181895.14 6 +272439.98 6670.0 – C57
2021-08-02 19:23:59 S 20 39 18.823 +24 49 55.13 – V C57
2021-08-02 19:23:59 s 1 -182104.16 2 +271955.83 720.0 – C57
2021-08-02 19:33:59 S 20 39 20.537 +24 50 47.04 – V C57
2021-08-02 19:33:59 s 1 -182312.46 8 +271470.63 2440.0 – C57
2021-08-02 19:43:59 S 20 39 22.291 +24 51 38.81 – V C57
2021-08-02 19:43:59 s 1 -182520.06 1 +270984.37 1840.0 – C57
2021-08-02 20:01:37 C 20 40 03.74 +25 39 59.5 – q C73
2021-08-02 20:03:59 S 20 39 25.682 +24 53 23.60 – V C57
2021-08-02 20:03:59 s 1 -182933.09 7 +270008.65 3590.0 – C57
2021-08-02 20:06:13 C 20 40 04.20 +25 40 23.3 – q C73
2021-08-02 20:10:50 C 20 40 04.66 +25 40 46.6 – q C73
2021-08-02 20:13:59 S 20 39 27.362 +24 54 16.09 – V C57
2021-08-02 20:13:59 s 1 -183138.53 5 +269519.20 5930.0 – C57
2021-08-02 20:23:59 S 20 39 29.064 +24 55 07.82 – V C57
2021-08-02 20:23:59 s 1 -183343.25 0 +269028.69 5910.0 – C57
2021-08-02 20:33:59 S 20 39 30.797 +24 56 01.25 – V C57
2021-08-02 20:33:59 s 1 -183547.23 8 +268537.11 3510.0 – C57
2021-08-02 20:34:39 C 20 40 07.14 +25 42 52.3 – q C73
2021-08-02 20:35:30 C 20 40 06.88 +25 42 48.7 – V L99
2021-08-02 20:36:45 C 20 40 07.03 +25 42 55.2 – V L99
2021-08-02 20:38:00 C 20 40 07.07 +25 43 01.5 – V L99
2021-08-02 20:39:14 C 20 40 07.76 +25 43 18.8 – q C73
2021-08-02 20:39:15 C 20 40 07.24 +25 43 09.2 – V L99
2021-08-02 20:40:30 C 20 40 07.32 +25 43 14.9 – V L99
2021-08-02 20:41:59 V 20 40 08.69 +25 43 23.2 14.5 V 247
2021-08-02 20:41:59 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:42:59 V 20 40 08.80 +25 43 29.0 14.4 V 247
2021-08-02 20:42:59 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:43:59 S 20 39 32.484 +24 56 52.66 – V C57
2021-08-02 20:43:59 s 1 -183750.49 7 +268044.47 8730.0 – C57
2021-08-02 20:44:58 V 20 40 09.01 +25 43 38.3 14.4 V 247
2021-08-02 20:44:58 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:45:57 V 20 40 09.11 +25 43 43.9 14.7 V 247
2021-08-02 20:45:57 v 1 016.33576 +48.20435 – – 247
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)