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
2008-02-13 05:00:45 C 08 21 23.23 +29 09 26.2 19.7 c 704
2009-12-29 10:47:36 C 11 23 24.01 +27 13 41.7 o H21
2009-12-29 10:55:23 C 11 23 23.22 +27 13 41.5 o H21
2009-12-29 10:59:15 C 11 23 22.83 +27 13 41.4 o H21
2010-01-12 10:01:44 C 10 45 08.35 +27 05 28.0 r 703
2010-01-12 10:11:39 C 10 45 07.09 +27 05 27.0 r 703
2010-01-12 10:21:38 C 10 45 05.65 +27 05 27.6 r 703
2010-01-12 10:31:37 C 10 45 04.28 +27 05 27.0 r 703
2010-01-28 10:45:39 C 09 52 04.00 +26 12 17.0 o F65
2010-01-28 10:47:50 C 09 52 03.69 +26 12 16.5 o F65
2010-02-03 21:00:36 C 09 32 32.41 +25 27 22.5 u A13
2010-02-03 22:05:01 C 09 32 24.74 +25 27 04.6 u A13
2010-02-03 22:23:55 C 09 32 22.20 +25 26 57.5 u A13
2010-03-14 05:03:40 C 08 41 01.75 +19 42 45.6 r G96
2010-03-14 05:12:06 C 08 41 01.75 +19 42 42.2 r G96
2010-03-14 05:20:41 C 08 41 01.68 +19 42 39.1 r G96
2010-03-14 05:29:13 C 08 41 01.64 +19 42 36.3 r G96
2011-06-27 06:37:37 C 19 23 10.71 -47 04 01.1 L W91
2011-06-27 06:39:49 C 19 23 10.54 -47 04 02.5 L W91
2011-07-18 06:34:08 C 18 19 16.24 -50 26 35.7 o 807
2011-07-18 06:41:14 C 18 19 14.97 -50 26 35.1 o 807
2011-07-18 06:48:19 C 18 19 13.70 -50 26 35.1 o 807
2012-02-11 09:30:48 C 09 53 31.66 +19 20 31.9 r 703
2012-02-11 09:53:40 C 09 53 29.18 +19 20 29.8 r 703
2012-02-11 10:05:17 C 09 53 27.96 +19 20 28.2 r 703
2012-02-15 08:21:20 C 09 43 57.670 +19 11 06.97 L F51
2012-02-15 08:41:17 C 09 43 55.675 +19 11 04.90 L F51
2012-02-15 09:21:21 C 09 43 51.646 +19 11 00.53 L F51
2013-07-07 15:53:40 C 20 37 43.29 -46 48 35.6 v Q68
2013-07-07 17:08:04 C 20 37 41.00 -46 49 33.9 v Q68
2013-07-07 18:19:43 C 20 37 38.90 -46 50 29.1 v Q68
2013-07-25 00:41:02 C 20 10 35.54 -53 20 14.7 q K93
2013-07-25 00:55:13 C 20 10 33.49 -53 20 29.0 q K93
2013-07-25 01:10:55 C 20 10 31.27 -53 20 45.2 q K93
2013-07-25 01:28:11 C 20 10 28.82 -53 21 02.4 q K93
2013-07-25 01:45:29 C 20 10 26.39 -53 21 19.6 q K93
2013-07-25 02:01:13 C 20 10 24.21 -53 21 35.4 q K93
2013-07-25 02:16:58 C 20 10 22.02 -53 21 50.6 q K93
2013-07-25 02:32:40 C 20 10 19.85 -53 22 06.1 q K93
2013-07-25 02:40:32 C 20 10 18.75 -53 22 13.6 q K93
2013-07-29 23:03:38 C 19 51 48.00 -55 33 17.6 q K93
2013-07-29 23:16:44 C 19 51 45.18 -55 33 32.1 q K93
2013-07-29 23:29:48 C 19 51 42.33 -55 33 46.7 q K93
2013-07-29 23:42:57 C 19 51 39.51 -55 34 01.0 q K93
2013-07-29 23:57:20 C 19 51 36.43 -55 34 16.5 q K93
2013-07-30 00:10:26 C 19 51 33.61 -55 34 30.6 q K93
2013-07-30 00:23:32 C 19 51 30.80 -55 34 44.6 q K93
2013-07-30 00:36:37 C 19 51 28.02 -55 34 58.6 q K93
2013-07-30 00:49:43 C 19 51 25.23 -55 35 12.5 q K93
2013-07-30 01:08:08 C 19 51 21.31 -55 35 31.8 q K93
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)