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
2017-01-05 08:39:30 C 10 13 15.46 +31 53 56.1 R G45
2017-01-05 08:45:46 C 10 13 14.75 +31 54 19.7 R G45
2017-01-05 08:46:45 C 10 13 14.67 +31 54 23.4 R G45
2017-01-05 08:54:45 C 10 13 13.77 +31 54 53.5 R G45
2017-01-05 09:03:06 C 10 13 12.85 +31 55 24.9 R G45
2017-01-05 09:04:04 C 10 13 12.73 +31 55 28.5 R G45
2017-01-06 22:18:38 C 10 09 11.47 +34 15 39.5 o 107
2017-01-06 22:25:14 C 10 09 10.62 +34 16 03.5 o 107
2017-01-07 01:47:55 C 10 08 45.36 +34 29 02.9 q 160
2017-01-07 01:49:53 C 10 08 45.14 +34 29 11.5 q 160
2017-01-07 01:51:49 C 10 08 44.91 +34 29 19.1 q 160
2017-01-07 08:06:49 C 10 08 01.71 +34 53 12.5 q 703
2017-01-07 08:09:03 C 10 08 01.35 +34 53 22.0 q 703
2017-01-07 08:13:38 C 10 08 00.80 +34 53 38.7 q 703
2017-01-07 08:15:53 C 10 08 00.49 +34 53 48.3 q 703
2017-01-07 08:20:25 C 10 07 59.88 +34 54 05.6 q 703
2017-01-07 08:22:39 C 10 07 59.64 +34 54 12.0 q 703
2017-01-07 08:27:12 C 10 07 59.07 +34 54 31.3 q 703
2017-01-09 11:22:32 C 10 01 19.39 +38 10 11.3 L T05
2017-01-09 12:01:38 C 10 01 13.43 +38 12 42.8 L T05
2017-01-09 12:10:53 C 10 01 11.88 +38 13 18.3 L T05
2017-01-09 12:29:23 C 10 01 09.00 +38 14 29.9 L T05
2017-01-10 01:22:35 C 09 59 16.22 +39 03 54.5 q 160
2017-01-10 01:25:33 C 09 59 15.75 +39 04 05.9 q 160
2017-01-10 01:28:20 C 09 59 15.29 +39 04 16.5 q 160
2017-01-13 11:38:00 C 09 45 21.70 +44 18 01.8 L T05
2017-01-13 11:51:43 C 09 45 18.86 +44 18 51.7 L T05
2017-01-13 12:00:26 C 09 45 17.13 +44 19 25.7 L T05
2017-01-13 12:16:41 C 09 45 13.73 +44 20 27.2 L T05
2017-01-14 18:33:26 C 09 39 10.63 +46 12 33.2 q D29
2017-01-14 18:58:09 C 09 39 05.11 +46 14 03.4 q D29
2017-01-17 19:55:22 C 09 22 23.93 +50 30 30.4 c J57
2017-01-17 20:18:25 C 09 22 18.18 +50 31 49.4 c J57
2017-01-17 20:39:59 C 09 22 12.66 +50 33 05.5 c J57
2017-01-17 21:36:19 C 09 21 58.22 +50 36 16.4 c J57
2017-01-18 00:21:44 C 09 21 13.80 +50 45 37.2 u 209
2017-01-18 00:27:24 C 09 21 12.32 +50 45 56.0 u 209
2017-01-18 00:33:03 C 09 21 10.76 +50 46 14.9 u 209
2017-01-18 00:40:19 C 09 21 08.82 +50 46 39.1 u 209
2017-01-18 00:45:58 C 09 21 07.37 +50 46 57.8 u 209
2017-01-18 00:51:38 C 09 21 05.85 +50 47 16.8 u 209
2017-01-18 00:59:30 C 09 21 03.76 +50 47 42.9 u 209
2017-01-18 01:05:09 C 09 21 02.26 +50 48 01.8 u 209
2017-01-18 01:10:49 C 09 21 00.68 +50 48 20.6 u 209
2017-01-18 01:22:46 C 09 20 57.59 +50 48 59.6 u 209
2017-01-18 01:28:25 C 09 20 56.03 +50 49 18.0 u 209
2017-01-18 01:34:05 C 09 20 54.46 +50 49 37.6 u 209
2017-01-21 10:33:39 C 08 58 21.48 +55 00 21.3 L T05
2017-01-21 10:58:53 C 08 58 13.38 +55 01 33.2 L T05
2017-01-21 11:15:19 C 08 58 08.10 +55 02 20.0 L T05