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
2013-01-01 20:14:42 C 05 36 25.78 +23 09 05.6 u J93
2013-01-01 20:18:48 C 05 36 24.53 +23 09 21.7 u J93
2013-01-01 20:22:55 C 05 36 23.25 +23 09 38.9 u J93
2013-01-02 21:37:47 C 05 29 05.54 +24 47 38.5 u A13
2013-01-02 21:40:50 C 05 29 04.64 +24 47 49.7 u A13
2013-01-02 21:45:28 C 05 29 03.28 +24 48 06.9 u A13
2013-01-02 22:04:56 C 05 28 57.57 +24 49 19.0 u A13
2013-01-04 04:40:49 C 05 20 45.45 +26 36 30.9 r G96
2013-01-04 04:49:18 C 05 20 43.15 +26 36 59.1 r G96
2013-01-04 04:57:48 C 05 20 40.70 +26 37 27.6 r G96
2013-01-04 05:06:11 C 05 20 38.50 +26 37 55.2 r G96
2013-01-04 05:14:28 C 05 20 36.27 +26 38 22.8 r G96
2013-01-05 01:27:35 C 05 15 33.18 +27 42 14.6 16.9 r 726
2013-01-05 01:34:21 C 05 15 31.48 +27 42 35.8 17.0 r 726
2013-01-05 19:36:50 C 05 11 13.33 +28 36 04.6 w I57
2013-01-05 19:39:17 C 05 11 12.72 +28 36 11.8 w I57
2013-01-05 19:40:06 C 05 11 12.57 +28 36 13.8 w I57
2013-01-07 00:31:25 C 05 04 46.15 +29 54 12.9 17.4 r 726
2013-01-07 00:34:48 C 05 04 45.28 +29 54 23.4 16.9 r 726
2013-01-08 02:33:55 C 04 59 22.08 +30 58 13.1 u H21
2013-01-08 02:37:17 C 04 59 21.38 +30 58 20.7 u H21
2013-01-08 02:38:56 C 04 59 21.02 +30 58 24.7 u H21
2013-01-08 02:41:08 C 04 59 20.57 +30 58 29.6 u H21
2013-01-08 02:43:18 C 04 59 20.10 +30 58 34.9 u H21
2013-01-10 01:50:38 C 04 50 38.33 +32 39 23.2 16.8 726
2013-01-10 01:54:02 C 04 50 37.66 +32 39 30.7 16.7 726
2013-01-10 01:57:25 C 04 50 37.01 +32 39 37.6 16.7 726
2013-01-10 02:00:48 C 04 50 36.44 +32 39 43.9 16.8 726
2013-01-10 04:50:06 C 04 50 06.18 +32 45 27.8 17.2 c 704
2013-01-10 05:08:39 C 04 50 02.75 +32 46 04.0 17.4 c 704
2013-01-10 05:27:06 C 04 49 59.36 +32 46 39.5 17.5 c 704
2013-01-10 05:45:25 C 04 49 56.01 +32 47 14.6 17.7 c 704
2013-01-10 06:03:46 C 04 49 52.64 +32 47 49.3 17.7 c 704
2013-01-15 16:57:29 C 04 32 02.94 +36 11 52.9 u D00
2013-01-15 17:13:30 C 04 32 01.07 +36 12 13.0 u D00
2013-01-15 17:29:30 C 04 31 59.21 +36 12 33.2 u D00
2013-01-15 17:45:29 C 04 31 57.34 +36 12 53.4 u D00
2013-01-16 21:01:50 C 04 29 10.68 +36 45 11.0 r 168
2013-01-16 21:04:26 C 04 29 10.41 +36 45 14.2 r 168
2013-01-16 21:06:55 C 04 29 10.25 +36 45 17.5 r 168
2013-01-18 16:56:50 C 04 25 22.43 +37 32 30.6 r 168
2013-01-18 18:42:50 C 04 25 13.36 +37 34 15.3 r 168
2013-01-18 18:51:05 C 04 25 12.64 +37 34 23.1 r 168
2013-01-20 03:16:53 C 04 22 51.56 +38 05 44.6 r 703
2013-01-20 03:31:26 C 04 22 50.44 +38 05 57.4 r 703
2013-01-20 03:47:30 C 04 22 49.36 +38 06 12.6 r 703
2013-01-20 04:04:03 C 04 22 48.10 +38 06 28.8 r 703
2013-01-26 02:01:14 C 04 16 07.31 +39 55 19.7 u H21
2013-01-26 02:08:43 C 04 16 07.06 +39 55 24.8 u H21
2013-01-26 02:15:56 C 04 16 06.76 +39 55 29.4 u H21