153958 (2002 AM31)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4514220293 ± 3.71e-09
Semi-major axis (a)1.7032680436 AU ± 1.46e-09
Inclination (i)4.64444760° ± 1.03e-06
Long. of Asc. Node (Ω)144.36077985° ± 6.31e-06
Arg. of Perihelion (ω)197.94555713° ± 5.14e-06
Mean Anomaly (M)344.28180112° ± 2.97e-06
Mean Motion (n)0.4433919241°/day ± 5.70e-10
Perihelion dist (q)0.93437533 AU ± 6.37e-09
Aphelion dist (Q)2.47216076 AU ± 6.67e-09
Orbital Period2.22292340 yr ± 2.86e-09
Physical Parameters
H (abs. magnitude)18.35
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.332″
Uncertainty0
Orbit TypeApollo
MOID0.032204 AU
Observations Used781
Radar Obs Used8
Oppositions16
Arc Total1983-2025
First Observation Used1983-05-07
Last Observation Used2025-04-26
Observations (828)
Date Type RA Dec Mag Band Observatory
2023-11-09 19:22:45 C 20 58 44.278 -28 02 44.88 V M22
2023-11-09 19:53:17 C 20 58 53.988 -28 02 19.32 V M22
2023-11-09 20:09:56 C 20 58 59.225 -28 02 05.96 V M22
2023-11-11 01:22:48 C 21 08 20.174 -27 37 40.37 V W68
2023-11-11 01:28:04 C 21 08 21.806 -27 37 35.72 V W68
2023-11-11 01:59:39 C 21 08 31.699 -27 37 06.56 V W68
2023-11-11 02:10:26 C 21 08 35.201 -27 36 56.99 V W68
2023-11-12 19:33:19 C 21 21 46.054 -26 57 58.10 V M22
2023-11-12 19:38:38 C 21 21 47.698 -26 57 52.78 V M22
2023-11-12 20:03:21 C 21 21 55.409 -26 57 27.83 V M22
2023-11-12 20:12:22 C 21 21 58.255 -26 57 18.54 V M22
2023-11-29 19:11:20 C 23 19 10.423 -17 22 05.41 V M22
2023-11-29 19:15:20 C 23 19 11.374 -17 21 58.72 V M22
2023-11-29 19:44:23 C 23 19 18.504 -17 21 10.87 V M22
2023-11-29 20:05:48 C 23 19 23.784 -17 20 35.70 V M22
2023-11-30 20:04:06 C 23 25 18.053 -16 41 05.42 V M22
2023-11-30 20:08:44 C 23 25 19.207 -16 40 57.97 V M22
2023-11-30 20:24:44 C 23 25 22.992 -16 40 31.04 V M22
2023-11-30 20:32:58 C 23 25 25.001 -16 40 16.93 V M22
2023-12-03 04:38:37 C 23 38 45.841 -15 08 05.06 V 703
2023-12-03 04:44:22 C 23 38 47.000 -15 07 53.98 V 703
2023-12-03 04:47:14 C 23 38 47.692 -15 07 49.66 V 703
2023-12-08 02:50:24 C 00 04 48.846 -11 55 19.70 V G96
2023-12-08 02:57:54 C 00 04 50.372 -11 55 07.43 V G96
2023-12-08 03:05:24 C 00 04 51.913 -11 54 55.40 V G96
2023-12-08 03:12:54 C 00 04 53.440 -11 54 43.34 V G96
2023-12-10 06:50:51 C 00 15 25.990 -10 32 38.65 V T05
2023-12-10 06:54:54 C 00 15 26.808 -10 32 31.92 V T05
2023-12-10 07:04:00 C 00 15 28.589 -10 32 17.99 V T05
2023-12-10 07:34:07 C 00 15 34.459 -10 31 30.79 V T05
2023-12-12 07:03:43 C 00 24 51.576 -09 17 42.54 V T08
2023-12-12 07:08:40 C 00 24 52.522 -09 17 34.22 V T08
2023-12-12 07:19:14 C 00 24 54.463 -09 17 18.56 V T08
2023-12-12 07:42:12 C 00 24 58.771 -09 16 42.35 V T08
2023-12-16 06:42:39 C 00 42 27.545 -06 54 32.22 V T08
2023-12-16 06:47:19 C 00 42 28.344 -06 54 24.34 V T08
2023-12-16 06:57:48 C 00 42 30.137 -06 54 09.79 V T08
2023-12-16 07:17:22 C 00 42 33.571 -06 53 41.35 V T08
2023-12-17 03:58:02 C 00 46 11.006 -06 23 50.17 V 703
2023-12-17 04:01:22 C 00 46 11.629 -06 23 44.77 V 703
2023-12-17 04:04:43 C 00 46 12.119 -06 23 40.16 V 703
2023-12-17 04:08:03 C 00 46 12.767 -06 23 36.24 V 703
2023-12-25 07:59:40 C 01 17 47.685 -02 00 00.94 X F51
2023-12-25 08:19:13 C 01 17 50.559 -01 59 36.38 X F51
2023-12-25 08:38:51 C 01 17 53.448 -01 59 11.72 X F51
2024-01-05 05:40:16 C 01 53 56.553 +02 57 45.05 X F51
2024-01-05 05:59:22 C 01 53 58.937 +02 58 04.80 X F51
2024-01-05 06:18:27 C 01 54 01.319 +02 58 24.34 X F51
2024-01-05 06:37:28 C 01 54 03.686 +02 58 43.87 X F51
2024-01-13 02:45:18 C 02 17 04.060 +05 58 51.13 V G96
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2012-07-12 02:47:00 69235472.11 4 us 2380 -1 -1
2012-07-15 03:08:00 55498824.2 0.5 us 2380 -1 -1
2012-07-15 03:20:00 438181.029 1 Hz 8560 -14 -14
2012-07-17 08:10:00 46712279.22 3 us 8560 -14 -14
2012-07-17 09:20:00 46539849.55 2 us 8560 -14 -14
2012-07-23 07:20:00 35089313.22 1 us 8560 -14 -14
2012-07-27 12:10:00 42926600.19 2 us 8560 -14 -14
2012-08-07 13:11:00 92998198.65 0.5 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)