232691 (2004 AR1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4694561998 ± 6.73e-09
Semi-major axis (a)1.5760612761 AU ± 7.57e-10
Inclination (i)9.07566274° ± 3.76e-06
Long. of Asc. Node (Ω)336.49739072° ± 1.40e-05
Arg. of Perihelion (ω)50.32423465° ± 1.43e-05
Mean Anomaly (M)45.94590420° ± 1.79e-06
Mean Motion (n)0.4981413901°/day ± 3.59e-10
Perihelion dist (q)0.83616954 AU ± 1.06e-08
Aphelion dist (Q)2.31595301 AU ± 1.07e-08
Orbital Period1.97860749 yr ± 1.43e-09
Physical Parameters
H (abs. magnitude)19.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.305″
Uncertainty0
Orbit TypeApollo
MOID0.032157 AU
Observations Used339
Radar Obs Used4
Oppositions4
Arc Total2004-2024
First Observation Used2004-01-13
Last Observation Used2024-03-10
Observations (368)
Date Type RA Dec Mag Band Observatory
2006-01-23 21:45:01 C 07 31 17.36 +45 26 00.8 c 560
2006-01-25 05:11:01 C 07 29 38.57 +44 21 16.9 c 699
2006-01-25 05:44:08 C 07 29 36.63 +44 20 10.3 c 699
2006-01-25 06:17:21 C 07 29 34.64 +44 19 04.5 c 699
2006-01-30 20:41:46 C 07 24 51.01 +40 12 31.5 o 240
2006-01-30 20:42:44 C 07 24 50.98 +40 12 30.0 o 240
2006-01-30 20:45:41 C 07 24 50.89 +40 12 25.4 o 240
2006-01-30 20:52:32 C 07 24 50.68 +40 12 13.8 o 240
2006-02-01 23:05:46 C 07 23 51.23 +38 51 31.3 c A53
2006-02-01 23:25:16 C 07 23 50.86 +38 51 01.0 c A53
2006-02-01 23:45:48 C 07 23 50.44 +38 50 29.0 c A53
2006-02-05 19:50:55 C 07 22 58.82 +36 36 30.2 r 941
2006-02-05 19:53:05 C 07 22 58.83 +36 36 27.3 r 941
2006-02-05 19:54:10 C 07 22 58.83 +36 36 25.8 r 941
2006-02-05 19:55:18 C 07 22 58.83 +36 36 24.3 r 941
2007-12-14 11:39:31 C 12 36 18.62 +42 11 13.1 o H55
2007-12-14 11:41:58 C 12 36 18.03 +42 11 13.8 o H55
2007-12-14 11:44:26 C 12 36 17.45 +42 11 14.7 o H55
2007-12-21 01:26:18 C 12 01 02.15 +42 32 55.6 o 198
2007-12-21 01:27:36 C 12 01 01.87 +42 32 55.7 o 198
2007-12-21 01:29:19 C 12 01 01.45 +42 32 55.9 o 198
2008-01-13 06:40:44 C 09 56 58.88 +39 39 02.1 r 703
2008-01-13 06:50:49 C 09 56 56.79 +39 38 55.2 r 703
2008-01-13 07:00:57 C 09 56 54.63 +39 38 48.6 r 703
2008-01-13 07:11:00 C 09 56 52.47 +39 38 41.9 r 703
2008-01-23 07:28:45 C 09 12 58.04 +36 24 14.2 o H55
2008-01-23 07:41:00 C 09 12 56.01 +36 24 03.3 o H55
2008-01-23 07:51:47 C 09 12 54.22 +36 23 53.5 o H55
2008-02-02 19:22:16 C 08 40 29.35 +32 36 55.0 o 151
2008-02-02 19:26:38 C 08 40 28.86 +32 36 51.1 o 151
2008-02-02 19:31:00 C 08 40 28.38 +32 36 47.3 o 151
2008-02-03 10:21:26 C 08 38 57.62 +32 23 47.6 r 703
2008-02-03 10:28:04 C 08 38 56.76 +32 23 42.0 r 703
2008-02-03 10:34:39 C 08 38 56.36 +32 23 37.3 r 703
2008-02-03 10:41:13 C 08 38 55.60 +32 23 29.5 r 703
2008-02-06 21:36:50 C 08 31 31.89 +31 11 49.2 c 560
2008-02-06 21:41:09 C 08 31 31.53 +31 11 45.8 c 560
2008-02-06 21:46:31 C 08 31 31.07 +31 11 42.1 c 560
2008-02-07 06:34:51 C 08 30 48.38 +31 04 19.9 19.1 c 704
2008-02-07 06:52:18 C 08 30 46.89 +31 04 05.0 19.4 c 704
2008-02-07 07:09:44 C 08 30 45.42 +31 03 50.8 19.5 c 704
2008-02-07 07:27:12 C 08 30 43.91 +31 03 35.8 19.7 c 704
2008-02-07 07:44:37 C 08 30 42.45 +31 03 20.6 19.5 c 704
2008-02-11 21:44:21 C 08 23 08.62 +29 33 41.4 c 560
2008-02-11 21:47:05 C 08 23 08.47 +29 33 39.4 c 560
2008-02-11 21:48:54 C 08 23 08.33 +29 33 38.2 c 560
2008-02-13 03:52:34 C 08 21 27.24 +29 10 17.3 19.7 c 704
2008-02-13 04:09:35 C 08 21 26.23 +29 10 05.6 19.9 c 704
2008-02-13 04:26:38 C 08 21 25.17 +29 09 52.3 o 704
2008-02-13 04:43:41 C 08 21 24.24 +29 09 38.6 20.0 c 704
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2013-08-26 21:40:00 -133643.035 1 Hz 8560 -14 -14
2013-08-26 21:50:00 -135067.416 0.5 Hz 8560 -14 -14
2013-08-26 22:20:00 55436464.46 10 us 8560 -14 -14
2013-09-01 17:24:00 73788016.06 0.5 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)