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
2021-08-01 16:13:59 S 20 34 37.596 +22 22 51.89 – V C57
2021-08-01 16:13:59 s 1 -140239.41 9 +337322.45 5840.0 – C57
2021-08-01 16:22:29 C 20 36 36.74 +23 09 04.9 – V 186
2021-08-01 16:23:32 C 20 36 36.81 +23 09 10.4 – V 186
2021-08-01 16:23:59 S 20 34 39.290 +22 23 46.50 – V C57
2021-08-01 16:23:59 s 1 -140535.86 8 +337002.21 9740.0 – C57
2021-08-01 16:33:59 S 20 34 40.982 +22 24 41.33 – V C57
2021-08-01 16:33:59 s 1 -140831.91 6 +336681.00 2270.0 – C57
2021-08-01 16:53:59 S 20 34 44.510 +22 26 34.62 – V C57
2021-08-01 16:53:59 s 1 -141422.80 4 +336035.67 3270.0 – C57
2021-08-01 17:03:59 S 20 34 46.241 +22 27 30.13 – V C57
2021-08-01 17:03:59 s 1 -141717.64 1 +335711.54 1720.0 – C57
2021-08-01 17:13:59 S 20 34 47.974 +22 28 26.98 – V C57
2021-08-01 17:13:59 s 1 -142012.07 1 +335386.44 8790.0 – C57
2021-08-01 17:23:59 S 20 34 49.711 +22 29 22.60 – V C57
2021-08-01 17:23:59 s 1 -142306.09 3 +335060.36 4490.0 – C57
2021-08-01 17:33:59 S 20 34 51.451 +22 30 18.43 – V C57
2021-08-01 17:33:59 s 1 -142599.70 6 +334733.31 8800.0 – C57
2021-08-01 17:43:59 S 20 34 53.196 +22 31 14.41 – V C57
2021-08-01 17:43:59 s 1 -142892.90 7 +334405.28 1730.0 – C57
2021-08-01 18:03:59 S 20 34 56.714 +22 33 06.12 – V C57
2021-08-01 18:03:59 s 1 -143478.07 1 +333746.31 3410.0 – C57
2021-08-01 18:13:59 S 20 34 58.469 +22 34 02.14 – V C57
2021-08-01 18:13:59 s 1 -143770.03 1 +333415.36 2160.0 – C57
2021-08-01 18:23:59 S 20 35 00.173 +22 34 57.61 – V C57
2021-08-01 18:23:59 s 1 -144061.57 3 +333083.43 9500.0 – C57
2021-08-01 18:33:59 S 20 35 01.910 +22 35 53.20 – V C57
2021-08-01 18:33:59 s 1 -144352.69 8 +332750.52 5430.0 – C57
2021-08-01 18:53:59 S 20 35 05.371 +22 37 44.29 – V C57
2021-08-01 18:53:59 s 1 -144933.68 5 +332081.78 3040.0 – C57
2021-08-01 19:03:59 S 20 35 07.157 +22 38 40.24 – V C57
2021-08-01 19:03:59 s 1 -145223.54 5 +331745.95 4710.0 – C57
2021-08-01 19:13:59 S 20 35 08.904 +22 39 35.86 – V C57
2021-08-01 19:13:59 s 1 -145512.98 0 +331409.13 4950.0 – C57
2021-08-01 19:23:59 S 20 35 10.589 +22 40 31.01 – V C57
2021-08-01 19:23:59 s 1 -145801.99 0 +331071.33 3770.0 – C57
2021-08-01 19:33:59 S 20 35 12.379 +22 41 28.46 – V C57
2021-08-01 19:33:59 s 1 -146090.57 2 +330732.56 1140.0 – C57
2021-08-01 19:43:59 S 20 35 14.066 +22 42 22.54 – V C57
2021-08-01 19:43:59 s 1 -146378.72 6 +330392.81 7080.0 – C57
2021-08-01 19:53:59 S 20 35 15.797 +22 43 17.90 – V C57
2021-08-01 19:53:59 s 1 -146666.44 9 +330052.07 1560.0 – C57
2021-08-01 20:03:59 S 20 35 17.561 +22 44 13.92 – V C57
2021-08-01 20:03:59 s 1 -146953.74 0 +329710.36 4600.0 – C57
2021-08-01 20:13:59 S 20 35 19.327 +22 45 08.96 – V C57
2021-08-01 20:13:59 s 1 -147240.59 7 +329367.66 6170.0 – C57
2021-08-01 20:23:59 S 20 35 21.031 +22 46 05.05 – V C57
2021-08-01 20:23:59 s 1 -147527.02 0 +329023.98 6290.0 – C57
2021-08-01 20:33:59 S 20 35 22.766 +22 47 00.60 – V C57
2021-08-01 20:33:59 s 1 -147813.00 5 +328679.32 4940.0 – 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)