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
2002-02-04 20:18:40 C 12 33 49.27 +59 27 28.1 c 113
2002-02-05 03:35:34 C 12 33 59.00 +59 53 07.1 c 118
2002-02-05 03:38:31 C 12 33 59.02 +59 53 16.7 c 118
2002-02-05 03:41:43 C 12 33 59.10 +59 53 28.1 c 118
2002-02-06 10:17:36 C 12 34 51.41 +61 39 17.1 c 670
2002-02-06 13:45:39 C 12 34 53.30 +61 51 08.6 c 670
2002-02-15 01:12:58 C 12 34 43.34 +72 56 59.0 c 118
2002-02-15 01:22:14 C 12 34 42.79 +72 57 27.3 c 118
2002-02-15 01:29:42 C 12 34 42.39 +72 57 49.2 c 118
2002-02-15 09:57:16 C 12 34 20.22 +73 23 39.4 c 649
2002-02-15 10:03:38 C 12 34 19.81 +73 23 58.6 c 649
2002-02-15 10:10:16 C 12 34 19.33 +73 24 18.7 c 649
2002-02-16 06:39:41 C 12 33 26.14 +74 25 37.5 c 642
2002-02-16 06:43:09 C 12 33 25.70 +74 25 48.2 c 642
2002-02-16 06:46:18 C 12 33 25.68 +74 25 58.8 c 642
2002-03-05 04:59:25 C 05 19 01.79 +87 15 06.1 c 649
2002-03-05 05:03:29 C 05 18 52.91 +87 15 01.6 c 649
2002-03-05 05:12:52 C 05 18 30.72 +87 14 50.9 c 649
2002-04-07 20:49:43 C 02 00 02.59 +66 33 48.4 c 966
2002-04-07 21:15:10 C 02 00 01.64 +66 33 02.1 c 966
2006-01-04 11:37:54 C 12 50 26.44 +15 56 33.8 r 703
2006-01-04 11:45:47 C 12 50 27.34 +15 56 40.8 r 703
2006-01-04 11:53:38 C 12 50 28.68 +15 56 43.5 r 703
2006-01-04 12:01:30 C 12 50 29.54 +15 56 52.0 r 703
2006-02-06 10:26:26 C 15 02 37.42 +33 09 32.4 19.4 c 704
2006-02-06 10:45:05 C 15 02 41.47 +33 10 02.5 19.9 c 704
2006-02-06 11:03:33 C 15 02 45.51 +33 10 34.9 19.2 c 704
2006-02-06 11:21:44 C 15 02 49.45 +33 11 05.0 19.1 c 704
2008-12-07 10:45:32 C 22 11 06.48 -57 47 43.6 r E12
2008-12-07 10:49:42 C 22 11 09.15 -57 47 30.5 r E12
2008-12-30 03:38:22 C 01 30 14.30 -10 02 46.3 r H45
2008-12-30 03:40:11 C 01 30 14.57 -10 02 37.8 r H45
2008-12-30 03:41:12 C 01 30 14.79 -10 02 32.8 r H45
2008-12-30 03:42:19 C 01 30 14.90 -10 02 27.6 r H45
2008-12-30 03:43:48 C 01 30 15.21 -10 02 20.6 r H45
2008-12-30 19:33:07 C 01 33 01.43 -08 46 57.4 r 130
2008-12-30 19:36:44 C 01 33 02.04 -08 46 40.4 r 130
2008-12-30 19:39:38 C 01 33 02.48 -08 46 27.2 r 130
2008-12-30 19:41:48 C 01 33 02.86 -08 46 17.3 r 130
2008-12-31 02:47:03 C 01 34 15.85 -08 13 00.7 r 703
2008-12-31 02:59:15 C 01 34 17.83 -08 12 04.3 r 703
2008-12-31 03:11:40 C 01 34 19.70 -08 11 05.6 r 448
2008-12-31 03:18:34 C 01 34 20.81 -08 10 33.7 r 448
2008-12-31 03:22:42 C 01 34 21.48 -08 10 14.3 r 448
2008-12-31 03:23:44 C 01 34 21.75 -08 10 10.2 r 703
2008-12-31 03:26:49 C 01 34 22.16 -08 09 55.0 r 448
2009-01-01 04:48:08 C 01 38 34.001 -06 14 27.60 645
2009-01-01 04:49:19 C 01 38 34.196 -06 14 21.88 645
2009-01-01 04:51:43 C 01 38 34.567 -06 14 11.23 645
2009-01-01 04:52:54 C 01 38 34.750 -06 14 05.72 645