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
2017-01-30 08:17:07 C 07 44 34.19 +62 16 04.4 q H45
2017-02-02 04:26:22 C 07 20 07.23 +63 24 40.2 q 703
2017-02-02 04:34:43 C 07 20 04.19 +63 24 47.2 q 703
2017-02-02 04:43:06 C 07 20 01.00 +63 24 54.1 q 703
2017-02-02 04:51:34 C 07 19 57.91 +63 25 01.1 q 703
2017-02-06 11:59:00 C 06 45 52.10 +64 16 51.7 q D29
2017-02-10 03:03:55 C 06 21 24.21 +64 25 20.7 u H21
2017-02-10 03:13:28 C 06 21 21.64 +64 25 20.2 u H21
2017-02-10 03:22:22 C 06 21 19.23 +64 25 19.6 u H21
2017-02-12 12:51:11 C 06 07 42.40 +64 18 58.9 q D29
2017-02-12 13:12:50 C 06 07 37.25 +64 18 55.1 q D29
2017-02-15 12:20:13 C 05 53 29.96 +64 02 17.8 q D29
2017-02-15 12:40:35 C 05 53 26.05 +64 02 11.7 q D29
2017-02-15 13:00:58 C 05 53 22.06 +64 02 05.5 q D29
2017-02-16 12:05:44 C 05 49 24.92 +63 55 13.6 q D29
2017-02-16 12:30:33 C 05 49 20.43 +63 55 05.8 q D29
2017-02-16 12:55:22 C 05 49 15.89 +63 54 57.7 q D29
2017-03-03 02:20:43 C 05 17 36.72 +61 44 57.5 q 703
2017-03-03 02:28:55 C 05 17 36.27 +61 44 54.4 q 703
2017-03-03 02:37:06 C 05 17 35.89 +61 44 52.1 q 703
2017-03-03 02:45:16 C 05 17 35.63 +61 44 48.8 q 703
2020-01-27 05:25:13 C 01 21 01.755 +01 50 47.02 U F51
2020-01-27 05:49:36 C 01 21 05.752 +01 51 34.90 U F51
2020-10-14 11:53:55 C 09 22 40.18 -00 09 06.2 V G96
2020-10-14 12:02:52 C 09 22 40.75 -00 09 03.3 V G96
2020-10-14 12:11:46 C 09 22 41.29 -00 08 59.3 V G96
2020-11-25 12:01:22 C 10 41 29.61 +05 59 03.1 V G96
2020-11-25 12:08:46 C 10 41 30.23 +05 59 07.3 V G96
2020-11-25 12:16:09 C 10 41 30.83 +05 59 09.9 V G96
2020-11-25 12:23:32 C 10 41 31.41 +05 59 13.8 V G96
2020-12-14 11:56:11 C 11 20 05.54 +10 53 29.8 V G96
2020-12-14 12:03:35 C 11 20 06.19 +10 53 36.2 V G96
2020-12-14 12:27:49 C 11 20 08.13 +10 53 57.6 V G96
2020-12-14 12:35:15 C 11 20 08.76 +10 54 03.9 V G96
2020-12-24 10:57:52 C 11 40 24.15 +15 00 08.6 V G96
2020-12-24 11:05:14 C 11 40 24.79 +15 00 17.8 V G96
2020-12-24 11:12:36 C 11 40 25.32 +15 00 26.9 V G96
2020-12-24 11:19:58 C 11 40 25.91 +15 00 35.9 V G96
2020-12-26 14:19:48 C 11 44 46.58 +16 05 04.9 V T08
2020-12-26 14:22:40 C 11 44 46.83 +16 05 09.6 V T08
2020-12-26 14:26:47 C 11 44 47.15 +16 05 14.2 V T08
2020-12-26 14:36:33 C 11 44 47.94 +16 05 27.0 V T08
2021-01-08 12:01:33 C 12 11 23.09 +24 30 57.9 V G96
2021-01-08 12:09:00 C 12 11 23.68 +24 31 12.8 V G96
2021-01-08 12:16:28 C 12 11 24.28 +24 31 27.9 V G96
2021-01-08 12:23:55 C 12 11 24.89 +24 31 42.7 V G96
2021-01-09 11:17:38 C 12 13 24.60 +25 18 06.5 V 703
2021-01-09 11:25:11 C 12 13 25.26 +25 18 22.6 V 703
2021-01-09 11:32:43 C 12 13 25.77 +25 18 37.9 V 703
2021-01-09 11:40:16 C 12 13 26.45 +25 18 53.7 V 703