203471 (2002 AU4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3736100720 ± 2.00e+00
Semi-major axis (a)0.8553547584 AU ± 3.00e+00
Inclination (i)17.18516061° ± 4.00e+00
Long. of Asc. Node (Ω)99.41108807° ± 5.00e+00
Arg. of Perihelion (ω)205.21020552° ± 6.00e+00
Mean Anomaly (M)232.84410925° ± 1.48e-05
Mean Motion (n)1.2459277608°/day ± 6.55e+00
Perihelion dist (q)0.53578561 AU ± 2.54e+00
Aphelion dist (Q)1.17492391 AU ± 4.46e+00
Orbital Period0.79107819 yr ± 4.16e+00
NGA Modelr2
A2-4.19367064e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.45
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-28
RMS Residual0.334″
Uncertainty0
Orbit TypeAten
MOID0.088330 AU
Observations Used477
Oppositions8
Arc Total1994-2025
First Observation Used1994-01-07
Last Observation Used2025-03-02
Observations (494)
Date Type RA Dec Mag Band Observatory
2013-01-26 02:23:03 C 04 16 06.54 +39 55 34.1 u H21
2013-01-27 01:44:36 C 04 15 30.46 +40 10 16.0 u H21
2013-01-27 01:54:20 C 04 15 30.15 +40 10 22.1 u H21
2013-01-27 02:04:05 C 04 15 29.82 +40 10 28.0 u H21
2013-01-27 02:13:05 C 04 15 29.52 +40 10 33.6 u H21
2016-02-27 02:23:22 C 02 38 38.42 +14 22 18.9 q G96
2016-02-27 02:29:23 C 02 38 39.26 +14 22 26.3 q G96
2016-02-27 02:35:23 C 02 38 40.11 +14 22 33.8 q G96
2016-02-27 02:41:23 C 02 38 41.02 +14 22 41.0 q G96
2016-12-01 10:04:41 C 10 25 37.75 -00 51 39.8 R G45
2016-12-01 10:04:46 C 10 25 37.73 -00 51 39.8 R G45
2016-12-01 10:11:58 C 10 25 37.90 -00 51 30.7 R G45
2016-12-01 10:12:09 C 10 25 37.93 -00 51 30.5 R G45
2016-12-01 10:19:00 C 10 25 38.05 -00 51 21.9 R G45
2016-12-01 10:19:12 C 10 25 38.06 -00 51 21.6 R G45
2016-12-01 10:26:12 C 10 25 38.23 -00 51 13.1 R G45
2016-12-01 10:26:18 C 10 25 38.23 -00 51 13.3 R G45
2016-12-01 10:33:30 C 10 25 38.39 -00 51 04.0 R G45
2016-12-13 13:08:20 C 10 31 19.914 +06 27 56.87 L F51
2016-12-13 13:41:51 C 10 31 20.012 +06 28 58.76 L F51
2016-12-13 13:58:36 C 10 31 20.049 +06 29 29.81 L F51
2016-12-27 11:17:08 C 10 27 38.39 +19 47 21.7 R G45
2016-12-27 11:25:41 C 10 27 37.97 +19 47 47.3 R G45
2016-12-27 11:26:25 C 10 27 37.92 +19 47 49.6 R G45
2016-12-27 11:33:58 C 10 27 37.57 +19 48 12.3 R G45
2016-12-27 11:41:45 C 10 27 37.18 +19 48 35.8 R G45
2016-12-27 11:50:17 C 10 27 36.76 +19 49 01.5 R G45
2016-12-27 11:57:48 C 10 27 36.41 +19 49 24.0 R G45
2016-12-29 10:36:52 C 10 25 31.69 +22 14 28.0 q H45
2016-12-29 10:38:44 C 10 25 31.59 +22 14 34.0 q H45
2016-12-29 10:39:48 C 10 25 31.45 +22 14 37.6 q H45
2016-12-29 10:41:00 C 10 25 31.42 +22 14 41.4 q H45
2016-12-29 10:42:13 C 10 25 31.36 +22 14 44.6 q H45
2016-12-29 10:43:57 C 10 25 31.25 +22 14 50.3 q H45
2017-01-01 02:44:00 C 10 21 46.40 +25 47 18.6 q 160
2017-01-01 02:47:00 C 10 21 46.18 +25 47 29.1 q 160
2017-01-01 02:49:24 C 10 21 45.99 +25 47 37.5 q 160
2017-01-04 02:08:19 C 10 16 09.87 +30 01 01.0 q 160
2017-01-04 02:10:23 C 10 16 09.67 +30 01 08.3 q 160
2017-01-04 02:12:27 C 10 16 09.48 +30 01 15.9 q 160
2017-01-04 12:50:12 C 10 15 11.08 +30 40 33.5 L T05
2017-01-04 13:07:14 C 10 15 09.29 +30 41 36.5 L T05
2017-01-04 13:39:43 C 10 15 05.84 +30 43 36.2 L T05
2017-01-04 13:44:49 C 10 15 05.28 +30 43 55.4 L T05
2017-01-05 02:27:20 C 10 13 51.74 +31 30 43.2 q 160
2017-01-05 02:29:10 C 10 13 51.53 +31 30 50.4 q 160
2017-01-05 02:30:52 C 10 13 51.20 +31 30 57.7 q 160
2017-01-05 08:30:05 C 10 13 16.53 +31 53 20.5 R G45
2017-01-05 08:31:00 C 10 13 16.42 +31 53 24.1 R G45
2017-01-05 08:38:05 C 10 13 15.64 +31 53 50.7 R G45