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
2021-06-24 00:54:02 S 17 14 42.982 -68 37 45.98 V C57
2021-06-24 00:54:02 s 1 -116901.67 0 -44595.051 2810.0 C57
2021-06-24 01:04:02 S 17 14 43.282 -68 37 42.67 V C57
2021-06-24 01:04:02 s 1 -115993.97 7 -45460.745 5450.0 C57
2021-06-24 01:14:02 S 17 14 43.742 -68 37 38.93 V C57
2021-06-24 01:14:02 s 1 -115078.46 5 -46323.378 6390.0 C57
2021-06-24 01:24:02 S 17 14 43.906 -68 37 35.83 V C57
2021-06-24 01:24:02 s 1 -114155.08 7 -47182.847 5530.0 C57
2021-06-24 01:34:02 S 17 14 43.937 -68 37 33.35 V C57
2021-06-24 01:34:02 s 1 -113223.80 0 -48039.051 2750.0 C57
2021-06-24 01:44:02 S 17 14 44.489 -68 37 30.47 V C57
2021-06-24 01:44:02 s 1 -112284.56 0 -48891.883 7950.0 C57
2021-06-24 01:54:02 S 17 14 44.626 -68 37 25.97 V C57
2021-06-24 01:54:02 s 1 -111337.32 3 -49741.238 1030.0 C57
2021-06-24 02:04:02 S 17 14 45.043 -68 37 23.41 V C57
2021-06-24 02:04:02 s 1 -110382.04 8 -50587.005 1880.0 C57
2021-06-24 02:44:02 S 17 14 46.106 -68 37 09.62 V C57
2021-06-24 02:44:02 s 1 -106479.75 0 -53931.934 1080.0 C57
2021-06-24 02:54:02 S 17 14 46.584 -68 37 04.94 V C57
2021-06-24 02:54:02 s 1 -105483.67 9 -54758.046 9380.0 C57
2021-06-24 03:04:02 S 17 14 46.498 -68 37 00.55 V C57
2021-06-24 03:04:02 s 1 -104479.33 5 -55579.868 4910.0 C57
2021-06-24 03:34:02 S 17 14 47.203 -68 36 48.85 V C57
2021-06-24 03:34:02 s 1 -101416.31 8 -58018.330 4110.0 C57
2021-06-24 03:44:02 S 17 14 47.412 -68 36 44.96 V C57
2021-06-24 03:44:02 s 1 -100378.54 0 -58821.716 7800.0 C57
2021-06-24 03:54:02 S 17 14 47.501 -68 36 41.76 V C57
2021-06-24 03:54:02 s 1 -99332.325 0 -59620.165 8380.0 C57
2021-06-24 04:04:02 S 17 14 47.712 -68 36 37.15 V C57
2021-06-24 04:04:02 s 1 -98277.644 0 -60413.537 5770.0 C57
2021-06-24 04:14:02 S 17 14 47.722 -68 36 32.54 V C57
2021-06-24 04:14:02 s 1 -97214.471 0 -61201.694 9930.0 C57
2021-06-24 04:34:02 S 17 14 48.269 -68 36 24.77 V C57
2021-06-24 04:34:02 s 1 -95062.548 0 -62761.794 8380.0 C57
2021-06-24 05:04:02 S 17 14 48.559 -68 36 10.69 V C57
2021-06-24 05:04:02 s 1 -91770.399 0 -65059.211 820.0 C57
2021-06-24 22:41:15 C 17 16 28.17 -68 09 56.1 q X31
2021-06-24 22:46:32 C 17 16 29.16 -68 09 52.4 q X31
2021-06-24 22:51:48 C 17 16 30.13 -68 09 48.8 q X31
2021-06-24 22:57:04 C 17 16 31.12 -68 09 45.3 q X31
2021-06-24 23:02:18 C 17 16 32.07 -68 09 41.6 q X31
2021-06-24 23:07:32 C 17 16 33.05 -68 09 38.0 q X31
2021-06-24 23:12:50 C 17 16 34.01 -68 09 34.1 q X31
2021-06-30 10:05:30 C 17 46 02.92 -65 24 01.8 V Q70
2021-06-30 10:05:45 C 17 46 02.92 -65 24 01.2 V Q70
2021-06-30 10:06:31 C 17 46 03.05 -65 24 00.3 V Q70
2021-06-30 10:10:25 C 17 46 03.92 -65 23 53.9 V Q70
2021-06-30 10:20:03 C 17 46 05.93 -65 23 38.6 V Q70
2021-06-30 10:24:29 C 17 46 06.89 -65 23 31.2 V Q70
2021-07-06 06:00:06 S 18 22 22.82 -59 35 43.8 g C59
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)