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
2021-06-19 15:14:02 S 16 58 51.108 -68 50 33.25 V C57
2021-06-19 15:14:02 s 1 -123939.82 9 +356369.12 980.0 C57
2021-06-19 15:24:02 S 16 58 53.064 -68 50 32.53 V C57
2021-06-19 15:24:02 s 1 -124240.09 7 +356072.56 8840.0 C57
2021-06-19 15:34:02 S 16 58 54.322 -68 50 29.22 V C57
2021-06-19 15:34:02 s 1 -124540.02 7 +355775.08 5620.0 C57
2021-06-19 15:44:02 S 16 58 56.364 -68 50 28.39 V C57
2021-06-19 15:44:02 s 1 -124839.61 8 +355476.67 1330.0 C57
2021-06-19 15:54:02 S 16 58 58.145 -68 50 28.00 V C57
2021-06-19 15:54:02 s 1 -125138.86 8 +355177.32 5970.0 C57
2021-06-19 16:04:02 S 16 59 00.036 -68 50 27.31 V C57
2021-06-19 16:04:02 s 1 -125437.77 8 +354877.05 9520.0 C57
2021-06-19 16:14:02 S 16 59 01.651 -68 50 26.59 V C57
2021-06-19 16:14:02 s 1 -125736.34 4 +354575.85 1990.0 C57
2021-06-19 16:24:02 S 16 59 03.384 -68 50 24.90 V C57
2021-06-19 16:24:02 s 1 -126034.56 7 +354273.71 3380.0 C57
2021-06-19 16:34:02 S 16 59 05.354 -68 50 23.42 V C57
2021-06-19 16:34:02 s 1 -126332.44 4 +353970.65 3670.0 C57
2021-06-19 16:44:02 S 16 59 07.085 -68 50 22.60 V C57
2021-06-19 16:44:02 s 1 -126629.97 5 +353666.65 2870.0 C57
2021-06-19 16:54:02 S 16 59 09.053 -68 50 20.90 V C57
2021-06-19 16:54:02 s 1 -126927.15 8 +353361.72 970.0 C57
2021-06-19 17:04:02 S 16 59 10.769 -68 50 19.07 V C57
2021-06-19 17:04:02 s 1 -127223.99 3 +353055.86 7960.0 C57
2021-06-19 17:14:02 S 16 59 12.370 -68 50 16.94 V C57
2021-06-19 17:14:02 s 1 -127520.47 7 +352749.06 3860.0 C57
2021-06-19 17:24:02 S 16 59 14.563 -68 50 15.07 V C57
2021-06-19 17:24:02 s 1 -127816.60 9 +352441.33 8640.0 C57
2021-06-19 17:34:02 S 16 59 15.768 -68 50 15.00 V C57
2021-06-19 17:34:02 s 1 -128112.38 9 +352132.67 2310.0 C57
2021-06-19 17:44:02 S 16 59 17.914 -68 50 14.17 V C57
2021-06-19 17:44:02 s 1 -128407.81 4 +351823.07 4860.0 C57
2021-06-19 17:54:02 S 16 59 19.322 -68 50 14.03 V C57
2021-06-19 17:54:02 s 1 -128702.88 5 +351512.53 6300.0 C57
2021-06-19 18:04:02 S 16 59 21.446 -68 50 11.29 V C57
2021-06-19 18:04:02 s 1 -128997.59 8 +351201.06 6610.0 C57
2021-06-19 18:14:02 S 16 59 23.582 -68 50 10.86 V C57
2021-06-19 18:14:02 s 1 -129291.95 4 +350888.65 5790.0 C57
2021-06-19 18:24:02 S 16 59 24.934 -68 50 08.23 V C57
2021-06-19 18:24:02 s 1 -129585.95 0 +350575.31 3840.0 C57
2021-06-19 18:34:02 S 16 59 26.770 -68 50 07.08 V C57
2021-06-19 18:34:02 s 1 -129879.58 6 +350261.02 750.0 C57
2021-06-19 18:44:02 S 16 59 28.555 -68 50 06.43 V C57
2021-06-19 18:44:02 s 1 -130172.86 0 +349945.80 6530.0 C57
2021-06-19 18:54:02 S 16 59 30.245 -68 50 05.93 V C57
2021-06-19 18:54:02 s 1 -130465.77 1 +349629.64 1170.0 C57
2021-06-19 19:04:02 S 16 59 31.937 -68 50 04.81 V C57
2021-06-19 19:04:02 s 1 -130758.31 7 +349312.55 4660.0 C57
2021-06-19 19:14:02 S 16 59 34.085 -68 50 03.70 V C57
2021-06-19 19:14:02 s 1 -131050.49 7 +348994.51 6990.0 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)