2002 AC9

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5602626484 ± 1.99e-08
Semi-major axis (a)1.7031560022 AU ± 2.34e-09
Inclination (i)2.27643418° ± 8.70e-06
Long. of Asc. Node (Ω)2.41341220° ± 3.86e-04
Arg. of Perihelion (ω)28.63914202° ± 3.82e-04
Mean Anomaly (M)291.78705832° ± 5.33e-06
Mean Motion (n)0.4434356773°/day ± 9.12e-10
Perihelion dist (q)0.74894131 AU ± 3.40e-08
Aphelion dist (Q)2.65737069 AU ± 3.41e-08
Orbital Period2.22270407 yr ± 4.57e-09
Physical Parameters
H (abs. magnitude)21.23
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.511″
Uncertainty0
Orbit TypeApollo
MOID0.028844 AU
Observations Used127
Oppositions11
Arc Total2002-2022
First Observation Used2002-01-09
Last Observation Used2022-02-06
Observations (130)
Date Type RA Dec Mag Band Observatory
2010-07-20 19:25:29 C 20 09 47.64 -33 20 31.0 c D21
2010-08-07 14:15:25 C 17 34 34.20 -55 44 43.8 c D21
2010-08-07 14:17:21 C 17 34 31.04 -55 44 53.8 c D21
2010-08-07 14:19:18 C 17 34 28.00 -55 45 04.8 c D21
2021-12-31 03:34:22 C 12 15 20.07 +18 52 03.8 X C95
2021-12-31 03:48:39 C 12 15 13.05 +18 52 33.0 X C95
2021-12-31 04:02:33 C 12 15 06.18 +18 53 01.3 X C95
2021-12-31 04:16:03 C 12 14 59.58 +18 53 29.2 X C95
2022-01-04 11:49:25 C 11 29 27.68 +21 43 18.7 V 703
2022-01-04 12:04:32 C 11 29 21.31 +21 43 38.0 V 703
2022-01-04 12:12:05 C 11 29 18.19 +21 43 47.5 V 703
2022-01-05 10:42:08 C 11 20 26.74 +22 11 00.8 V G96
2022-01-05 10:49:39 C 11 20 23.71 +22 11 09.5 V G96
2022-01-05 10:57:11 C 11 20 20.68 +22 11 18.3 V G96
2022-01-05 11:04:40 C 11 20 17.67 +22 11 27.0 V G96
2022-01-08 09:09:16 C 10 54 54.19 +23 18 31.6 V 703
2022-01-08 09:16:53 C 10 54 51.51 +23 18 37.6 V 703
2022-01-08 09:24:29 C 10 54 48.79 +23 18 43.6 V 703
2022-01-08 09:32:06 C 10 54 46.11 +23 18 49.9 V 703
2022-01-08 12:40:23 C 10 53 42.50 +23 21 29.0 V T05
2022-01-08 12:43:01 C 10 53 41.54 +23 21 30.7 V T05
2022-01-08 12:47:37 C 10 53 39.95 +23 21 34.6 V T05
2022-01-08 12:54:53 C 10 53 37.39 +23 21 40.0 V T05
2022-01-10 11:41:15 C 10 38 33.52 +23 53 20.2 V T08
2022-01-10 11:44:34 C 10 38 32.45 +23 53 23.2 V T08
2022-01-10 11:51:52 C 10 38 30.12 +23 53 27.6 V T08
2022-01-10 12:02:35 C 10 38 26.66 +23 53 34.4 V T08
2022-01-11 07:39:37 C 10 32 31.90 +24 04 11.0 V 703
2022-01-11 07:47:11 C 10 32 29.60 +24 04 16.0 V 703
2022-01-11 07:54:44 C 10 32 27.35 +24 04 20.8 V 703
2022-01-12 11:28:17 C 10 24 30.13 +24 17 39.5 V T05
2022-01-12 11:33:19 C 10 24 28.64 +24 17 41.2 V T05
2022-01-12 11:38:00 C 10 24 27.25 +24 17 43.8 V T05
2022-01-12 11:47:31 C 10 24 24.46 +24 17 47.5 V T05
2022-01-12 12:46:50 C 10 24 07.03 +24 18 14.5 V T05
2022-01-24 09:01:26 C 09 23 19.04 +25 00 10.5 V 703
2022-01-24 09:16:45 C 09 23 16.58 +25 00 08.9 V 703
2022-01-24 09:24:24 C 09 23 15.36 +25 00 07.8 V 703
2022-01-24 21:14:14 C 09 21 26.36 +24 59 26.2 Z K19
2022-01-24 21:21:15 C 09 21 25.23 +24 59 26.3 Z K19
2022-01-24 21:28:14 C 09 21 24.12 +24 59 25.6 Z K19
2022-01-27 07:07:39 C 09 13 00.58 +24 55 34.1 V 703
2022-01-27 07:22:45 C 09 12 58.51 +24 55 31.3 V 703
2022-01-27 07:30:18 C 09 12 57.57 +24 55 28.2 V 703
2022-01-27 08:34:02 C 09 12 48.07 +24 55 26.1 V G96
2022-01-27 08:42:08 C 09 12 46.88 +24 55 25.3 V G96
2022-01-27 08:50:15 C 09 12 45.72 +24 55 24.6 V G96
2022-01-27 08:58:21 C 09 12 44.54 +24 55 23.6 V G96
2022-01-28 07:48:57 C 09 09 43.32 +24 53 07.9 V U68
2022-01-28 07:54:39 C 09 09 42.53 +24 53 08.2 V U68