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
2021-06-03 23:04:03 S 16 24 01.735 -68 24 19.48 – V C57
2021-06-03 23:04:03 s 1 -73499.614 0 +392052.69 5730.0 – C57
2021-06-03 23:14:03 S 16 24 02.501 -68 24 21.92 – V C57
2021-06-03 23:14:03 s 1 -73841.439 0 +391900.49 9910.0 – C57
2021-06-03 23:34:03 S 16 24 03.967 -68 24 37.19 – V C57
2021-06-03 23:34:03 s 1 -74524.599 0 +391593.47 6560.0 – C57
2021-06-03 23:54:03 S 16 24 04.682 -68 24 41.11 – V C57
2021-06-03 23:54:03 s 1 -75207.098 0 +391282.93 890.0 – C57
2021-06-04 00:04:03 S 16 24 06.689 -68 24 45.50 – V C57
2021-06-04 00:04:03 s 1 -75548.096 0 +391126.35 2170.0 – C57
2021-06-04 00:14:03 S 16 24 05.904 -68 24 54.72 – V C57
2021-06-04 00:14:03 s 1 -75888.927 0 +390968.89 2870.0 – C57
2021-06-04 00:23:55 C 16 20 37.89 -68 49 43.7 – V W86
2021-06-04 00:24:03 S 16 24 06.842 -68 24 58.39 – V C57
2021-06-04 00:24:03 s 1 -76229.589 0 +390810.55 2980.0 – C57
2021-06-04 00:26:57 C 16 20 37.96 -68 49 45.1 – V W86
2021-06-04 00:30:00 C 16 20 38.06 -68 49 46.7 – V W86
2021-06-04 00:34:03 S 16 24 07.370 -68 25 03.86 – V C57
2021-06-04 00:34:03 s 1 -76570.081 0 +390651.33 2500.0 – C57
2021-06-04 00:34:34 C 16 20 38.20 -68 49 49.0 – V W86
2021-06-04 00:44:03 S 16 24 08.633 -68 25 06.78 – V C57
2021-06-04 00:44:03 s 1 -76910.402 0 +390491.23 1420.0 – C57
2021-06-04 00:54:03 S 16 24 09.571 -68 25 14.09 – V C57
2021-06-04 00:54:03 s 1 -77250.552 0 +390330.25 9750.0 – C57
2021-06-04 01:04:03 S 16 24 10.078 -68 25 22.01 – V C57
2021-06-04 01:04:03 s 1 -77590.529 0 +390168.39 7470.0 – C57
2021-06-04 01:34:03 S 16 24 11.842 -68 25 37.49 – V C57
2021-06-04 01:34:03 s 1 -78609.417 0 +389677.53 7020.0 – C57
2021-06-04 01:44:03 S 16 24 12.790 -68 25 41.99 – V C57
2021-06-04 01:44:03 s 1 -78948.696 0 +389512.16 2330.0 – C57
2021-06-04 01:54:03 S 16 24 13.538 -68 25 47.89 – V C57
2021-06-04 01:54:03 s 1 -79287.797 0 +389345.90 7020.0 – C57
2021-06-04 02:04:03 S 16 24 14.304 -68 25 53.62 – V C57
2021-06-04 02:04:03 s 1 -79626.721 0 +389178.76 1090.0 – C57
2021-06-04 02:44:03 S 16 24 17.832 -68 26 16.76 – V C57
2021-06-04 02:44:03 s 1 -80980.618 0 +388501.38 1200.0 – C57
2021-06-04 03:23:54 C 16 20 42.59 -68 51 08.3 – V W85
2021-06-04 03:34:34 C 16 20 42.84 -68 51 12.9 – V W85
2021-06-04 04:14:03 S 16 24 23.194 -68 27 02.05 – V C57
2021-06-04 04:14:03 s 1 -84016.130 0 +386925.67 7050.0 – C57
2021-06-04 04:23:41 C 16 20 43.91 -68 51 32.9 – V W85
2021-06-04 04:34:21 C 16 20 44.15 -68 51 37.2 – V W85
2021-06-04 04:44:03 S 16 24 24.821 -68 27 17.64 – V C57
2021-06-04 04:44:03 s 1 -85024.570 0 +386384.53 740.0 – C57
2021-06-04 06:04:03 S 16 24 30.530 -68 28 02.32 – V C57
2021-06-04 06:04:03 s 1 -87705.165 0 +384902.52 8140.0 – C57
2021-06-04 06:14:03 S 16 24 30.564 -68 28 06.56 – V C57
2021-06-04 06:14:03 s 1 -88039.346 0 +384713.28 6050.0 – C57
2021-06-04 06:34:03 S 16 24 32.544 -68 28 17.69 – V C57
2021-06-04 06:34:03 s 1 -88707.101 0 +384332.13 9820.0 – 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)