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
2017-01-21 11:37:06 C 08 58 01.08 +55 03 21.1 L T05
2017-01-21 11:51:03 C 08 57 56.60 +55 04 00.1 L T05
2017-01-21 14:25:06 C 08 57 12.82 +55 11 02.0 q D29
2017-01-21 14:56:55 C 08 57 02.71 +55 12 33.4 q D29
2017-01-21 15:28:44 C 08 56 52.53 +55 14 04.2 q D29
2017-01-21 19:53:55 C 08 55 32.79 +55 26 06.2 u 107
2017-01-21 19:58:28 C 08 55 31.36 +55 26 17.9 u 107
2017-01-21 20:03:01 C 08 55 29.95 +55 26 31.6 u 107
2017-01-24 05:08:36 C 08 37 05.73 +57 53 08.4 q H45
2017-01-24 05:10:14 C 08 37 05.15 +57 53 12.4 q H45
2017-01-24 05:11:15 C 08 37 04.80 +57 53 14.8 q H45
2017-01-24 05:12:25 C 08 37 04.38 +57 53 17.5 q H45
2017-01-24 05:13:37 C 08 37 03.96 +57 53 20.4 q H45
2017-01-24 05:14:46 C 08 37 03.55 +57 53 23.3 q H45
2017-01-25 10:11:17 C 08 27 09.75 +58 58 22.7 L T05
2017-01-25 10:41:45 C 08 26 58.51 +58 59 27.7 L T05
2017-01-25 10:57:44 C 08 26 52.74 +59 00 01.0 L T05
2017-01-25 11:23:49 C 08 26 43.09 +59 00 56.4 L T05
2017-01-26 04:55:49 C 08 20 38.05 +59 36 44.1 q 703
2017-01-26 05:03:18 C 08 20 35.32 +59 36 58.9 q 703
2017-01-26 05:10:48 C 08 20 32.53 +59 37 14.2 q 703
2017-01-26 08:45:50 C 08 19 11.75 +59 44 14.6 q H45
2017-01-26 08:47:08 C 08 19 11.30 +59 44 17.0 q H45
2017-01-26 08:48:16 C 08 19 10.90 +59 44 19.1 q H45
2017-01-26 08:49:31 C 08 19 10.42 +59 44 21.4 q H45
2017-01-26 08:50:39 C 08 19 10.02 +59 44 23.4 q H45
2017-01-26 08:51:50 C 08 19 09.60 +59 44 25.9 q H45
2017-01-27 05:23:56 C 08 11 53.91 +60 23 00.0 R G45
2017-01-27 05:24:02 C 08 11 53.87 +60 23 00.0 R G45
2017-01-27 05:38:04 C 08 11 48.59 +60 23 25.7 R G45
2017-01-27 05:38:10 C 08 11 48.58 +60 23 26.0 R G45
2017-01-27 05:45:16 C 08 11 45.88 +60 23 38.8 R G45
2017-01-27 05:45:21 C 08 11 45.84 +60 23 39.2 R G45
2017-01-27 05:52:24 C 08 11 43.19 +60 23 51.9 R G45
2017-01-27 05:52:29 C 08 11 43.17 +60 23 52.3 R G45
2017-01-28 08:35:33 C 08 01 59.27 +61 08 51.7 q H45
2017-01-28 08:36:25 C 08 01 58.92 +61 08 53.0 q H45
2017-01-28 08:37:25 C 08 01 58.55 +61 08 54.4 q H45
2017-01-28 08:38:56 C 08 01 57.98 +61 08 56.9 q H45
2017-01-28 08:40:00 C 08 01 57.56 +61 08 58.4 q H45
2017-01-28 08:41:02 C 08 01 57.20 +61 08 59.7 q H45
2017-01-30 04:01:50 C 07 46 12.93 +62 10 48.2 q 703
2017-01-30 04:08:09 C 07 46 10.45 +62 10 56.7 q 703
2017-01-30 04:14:31 C 07 46 08.02 +62 11 05.6 q 703
2017-01-30 04:20:53 C 07 46 05.65 +62 11 14.0 q 703
2017-01-30 08:11:33 C 07 44 36.29 +62 15 57.7 q H45
2017-01-30 08:12:42 C 07 44 35.83 +62 15 58.8 q H45
2017-01-30 08:13:49 C 07 44 35.45 +62 16 00.3 q H45
2017-01-30 08:15:00 C 07 44 34.99 +62 16 01.6 q H45
2017-01-30 08:16:00 C 07 44 34.62 +62 16 02.8 q H45