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
2009-01-11 21:19:47 C 02 13 46.21 +09 02 48.8 c 587
2009-01-11 21:24:35 C 02 13 46.80 +09 03 01.8 c 587
2009-01-16 02:52:03 C 02 25 21.86 +13 23 29.5 r G96
2009-01-16 02:59:24 C 02 25 22.62 +13 23 46.6 r G96
2009-01-16 03:06:43 C 02 25 23.37 +13 24 03.8 r G96
2009-01-16 03:14:07 C 02 25 24.13 +13 24 21.1 r G96
2009-02-01 02:43:48 C 03 04 33.29 +24 35 13.0 19.6 c 704
2009-02-01 03:01:21 C 03 04 34.95 +24 35 35.4 19.9 c 704
2009-02-01 03:18:55 C 03 04 36.67 +24 35 57.7 19.7 c 704
2012-11-27 07:02:48 C 10 33 45.56 -41 12 44.7 u 807
2012-11-27 07:06:18 C 10 33 44.75 -41 12 40.7 u 807
2012-11-27 07:08:59 C 10 33 44.15 -41 12 37.7 u 807
2012-11-27 07:12:16 C 10 33 43.39 -41 12 33.9 u 807
2012-11-27 07:15:08 C 10 33 42.74 -41 12 30.5 u 807
2012-12-18 08:02:48 C 07 52 12.56 -12 45 02.2 16.6 c 704
2012-12-18 08:21:54 C 07 52 04.00 -12 42 56.2 17.1 c 704
2012-12-18 08:41:21 C 07 51 55.24 -12 40 47.2 17.0 c 704
2012-12-18 09:00:51 C 07 51 46.44 -12 38 38.3 17.0 c 704
2012-12-18 09:20:21 C 07 51 37.68 -12 36 28.4 16.8 c 704
2012-12-20 17:55:20 C 07 27 08.86 -06 05 27.5 o 300
2012-12-20 18:05:45 C 07 27 04.27 -06 04 13.3 o 300
2012-12-20 18:12:22 C 07 27 01.24 -06 03 26.2 o 300
2012-12-20 18:15:40 C 07 26 59.77 -06 03 02.5 o 300
2012-12-21 10:42:24 C 07 19 55.795 -04 05 20.92 L F51
2012-12-21 11:00:24 C 07 19 47.675 -04 03 13.13 L F51
2012-12-28 23:59:00 C 06 06 39.97 +15 50 22.0 q 160
2012-12-29 00:02:05 C 06 06 38.82 +15 50 38.9 q 160
2012-12-29 00:06:39 C 06 06 37.11 +15 51 03.7 q 160
2012-12-29 21:33:21 C 05 59 05.26 +17 44 53.7 u 089
2012-12-29 21:35:41 C 05 59 04.43 +17 45 05.7 u 089
2012-12-29 21:38:02 C 05 59 03.57 +17 45 17.1 u 089
2012-12-29 21:40:23 C 05 59 02.73 +17 45 29.8 u 089
2012-12-29 21:42:44 C 05 59 01.89 +17 45 42.0 u 089
2012-12-29 21:45:05 C 05 59 01.04 +17 45 53.5 u 089
2012-12-29 21:47:26 C 05 59 00.20 +17 46 06.1 u 089
2012-12-29 21:49:47 C 05 58 59.34 +17 46 17.9 u 089
2012-12-29 21:52:08 C 05 58 58.49 +17 46 29.9 u 089
2012-12-29 21:54:29 C 05 58 57.66 +17 46 42.0 u 089
2012-12-30 00:43:35 C 05 57 58.25 +18 01 07.8 q 160
2012-12-30 00:44:47 C 05 57 57.79 +18 01 13.2 q 160
2012-12-30 00:45:59 C 05 57 57.32 +18 01 19.2 q 160
2012-12-30 21:50:50 C 05 50 55.20 +19 45 07.2 q 160
2012-12-30 21:54:50 C 05 50 53.82 +19 45 26.2 q 160
2012-12-30 21:58:49 C 05 50 52.45 +19 45 45.2 q 160
2012-12-31 21:51:39 C 05 43 13.25 +21 34 51.1 q 160
2012-12-31 21:55:35 C 05 43 11.96 +21 35 08.4 q 160
2012-12-31 21:59:32 C 05 43 10.67 +21 35 25.7 q 160
2013-01-01 17:58:12 C 05 37 07.30 +22 59 44.4 q C18
2013-01-01 18:13:27 C 05 37 02.69 +23 00 47.6 q C18
2013-01-01 18:28:42 C 05 36 58.05 +23 01 50.7 q C18