250577 (2005 AC)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5177899759 ± 4.66e-08
Semi-major axis (a)1.0498878886 AU ± 1.40e-09
Inclination (i)46.88188522° ± 2.24e-05
Long. of Asc. Node (Ω)315.75700687° ± 1.15e-05
Arg. of Perihelion (ω)285.59238587° ± 1.04e-05
Mean Anomaly (M)89.72869737° ± 1.12e-05
Mean Motion (n)0.9162160334°/day ± 1.83e-09
Perihelion dist (q)0.50626646 AU ± 4.90e-08
Aphelion dist (Q)1.59350931 AU ± 4.90e-08
Orbital Period1.07575752 yr ± 2.15e-09
Physical Parameters
H (abs. magnitude)18.37
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.541″
Uncertainty0
Orbit TypeApollo
MOID0.073964 AU
Observations Used255
Radar Obs Used1
Oppositions1
Arc Total2004-2020
First Observation Used2004-12-15
Last Observation Used2025-10-09
Observations (400)
Date Type RA Dec Mag Band Observatory
2021-03-03 03:47:07 C 03 09 26.59 +25 13 15.4 V 703
2021-03-04 11:56:34 C 03 11 09.20 +23 22 22.1 q D29
2021-03-04 12:19:28 C 03 11 10.34 +23 21 03.0 q D29
2021-03-04 12:42:23 C 03 11 11.43 +23 19 44.3 q D29
2021-03-07 02:56:43 C 03 14 09.69 +19 48 50.5 V 703
2021-03-07 03:13:04 C 03 14 10.40 +19 47 54.7 V 703
2021-03-07 03:21:14 C 03 14 10.72 +19 47 27.9 V 703
2022-03-13 03:04:18 C 03 38 34.76 +37 29 48.9 V G96
2022-03-13 03:12:33 C 03 38 35.68 +37 29 35.4 V G96
2022-03-13 03:20:49 C 03 38 36.56 +37 29 22.0 V G96
2022-03-13 03:29:03 C 03 38 37.54 +37 29 08.2 V G96
2023-11-11 01:32:34 C 18 53 53.351 +62 42 06.80 V V00
2023-11-11 01:40:31 C 18 53 54.337 +62 42 02.52 V V00
2023-11-11 01:48:26 C 18 53 55.349 +62 41 58.24 V V00
2023-11-11 01:56:22 C 18 53 56.350 +62 41 53.95 V V00
2024-09-07 02:54:06 C 14 45 04.018 +53 07 10.24 V 703
2024-09-07 02:57:28 C 14 45 05.468 +53 07 14.81 V 703
2024-09-07 03:04:10 C 14 45 08.176 +53 07 20.24 V 703
2024-09-09 02:37:59 C 15 05 03.304 +53 40 40.22 V 703
2024-09-09 02:41:28 C 15 05 04.787 +53 40 41.84 V 703
2024-09-09 02:44:57 C 15 05 06.126 +53 40 42.38 V 703
2024-09-09 02:51:10 C 15 05 08.509 +53 40 46.49 V 703
2024-09-13 04:35:48 C 15 40 32.239 +54 06 45.97 V 703
2024-09-13 04:45:49 C 15 40 35.663 +54 06 46.87 V 703
2024-09-20 02:40:53 C 16 26 29.897 +53 40 37.09 V G96
2024-09-20 02:49:08 C 16 26 31.798 +53 40 34.50 V G96
2024-09-20 02:57:21 C 16 26 33.659 +53 40 31.69 V G96
2024-09-20 03:05:34 C 16 26 35.639 +53 40 28.63 V G96
2024-09-22 03:40:43 C 16 37 27.764 +53 24 34.63 V 703
2024-09-22 03:47:39 C 16 37 29.154 +53 24 31.72 V 703
2024-09-22 03:51:06 C 16 37 29.813 +53 24 31.36 V 703
2024-09-28 02:23:41 C 17 04 49.199 +52 29 24.72 V G96
2024-09-28 02:31:10 C 17 04 50.444 +52 29 21.44 V G96
2024-09-28 02:38:39 C 17 04 51.704 +52 29 18.82 V G96
2024-09-28 02:46:07 C 17 04 52.950 +52 29 15.14 V G96
2024-09-28 02:51:02 C 17 04 53.792 +52 29 12.66 V G96
2024-09-28 02:58:33 C 17 04 55.067 +52 29 09.31 V G96
2024-09-28 03:06:05 C 17 04 56.320 +52 29 06.14 V G96
2024-09-28 03:13:36 C 17 04 57.594 +52 29 02.87 V G96
2024-10-12 03:34:05 C 17 53 46.748 +50 11 50.24 V G96
2024-10-12 03:41:43 C 17 53 47.634 +50 11 47.00 V G96
2024-10-12 03:49:21 C 17 53 48.548 +50 11 43.84 V G96
2024-10-12 03:56:58 C 17 53 49.520 +50 11 40.96 V G96
2024-10-22 03:18:05 C 18 22 35.350 +48 46 25.64 V G96
2024-10-22 03:25:28 C 18 22 36.232 +48 46 23.30 V G96
2024-10-22 03:32:50 C 18 22 37.045 +48 46 20.53 V G96
2024-10-22 03:40:12 C 18 22 37.895 +48 46 17.72 V G96
2025-10-09 05:41:21 C 17 09 49.245 +15 39 43.78 X F51
2025-10-09 05:57:19 C 17 09 52.512 +15 40 08.35 X F51
2025-10-09 06:13:21 C 17 09 55.746 +15 40 32.56 X F51
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2020-02-05 17:54:00 89347511.41 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)