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
2012-11-10 10:11:06 C 06 53 48.53 +08 45 17.8 18.8 c 704
2012-11-24 14:09:23 C 06 30 28.873 +09 29 10.13 L F51
2012-11-24 14:26:51 C 06 30 27.341 +09 29 13.59 L F51
2012-11-24 14:41:01 C 06 30 26.095 +09 29 16.38 L F51
2012-11-24 14:57:21 C 06 30 24.662 +09 29 19.60 L F51
2012-11-25 13:13:35 C 06 28 33.464 +09 33 59.71 L F51
2012-11-25 13:32:13 C 06 28 31.797 +09 34 03.65 L F51
2012-11-28 06:56:17 C 06 22 55.47 +09 48 48.6 V G45
2012-11-28 07:17:11 C 06 22 53.55 +09 48 54.0 V G45
2012-11-28 09:09:22 C 06 22 42.97 +09 49 20.8 v H21
2012-11-28 09:16:13 C 06 22 42.27 +09 49 21.1 v H21
2012-11-28 09:22:49 C 06 22 41.68 +09 49 22.6 v H21
2012-11-28 09:29:24 C 06 22 41.07 +09 49 23.9 v H21
2012-11-28 09:31:31 C 06 22 41.18 +09 49 26.1 V G45
2012-11-28 10:02:13 C 06 22 38.32 +09 49 33.0 V G45
2012-12-01 08:51:26 C 06 16 21.19 +10 07 24.1 q H21
2012-12-01 08:57:29 C 06 16 20.61 +10 07 25.5 q H21
2012-12-01 09:03:43 C 06 16 20.03 +10 07 27.5 q H21
2012-12-01 09:09:51 C 06 16 19.46 +10 07 28.3 q H21
2012-12-06 02:51:56 C 06 06 02.98 +10 39 24.9 c A24
2012-12-06 02:52:58 C 06 06 02.85 +10 39 25.4 c A24
2012-12-06 02:54:00 C 06 06 02.80 +10 39 24.9 c A24
2012-12-06 03:58:20 C 06 05 56.77 +10 39 43.3 c A24
2012-12-06 03:59:22 C 06 05 56.68 +10 39 44.3 c A24
2012-12-06 04:00:24 C 06 05 56.61 +10 39 44.4 c A24
2012-12-06 04:01:26 C 06 05 56.55 +10 39 45.1 c A24
2012-12-06 09:26:43 C 06 05 27.46 +10 41 26.7 17.9 c 704
2012-12-06 09:45:31 C 06 05 25.69 +10 41 32.0 18.0 c 704
2012-12-06 10:04:17 C 06 05 23.91 +10 41 37.4 18.0 c 704
2012-12-06 10:41:50 C 06 05 20.34 +10 41 47.8 18.3 c 704
2012-12-09 08:31:38 C 05 59 05.13 +11 03 10.7 o 926
2012-12-09 08:51:03 C 05 59 03.32 +11 03 16.5 o 926
2012-12-09 09:14:23 C 05 59 01.15 +11 03 23.8 o 926
2012-12-10 02:57:03 C 05 57 26.79 +11 08 54.7 c A24
2012-12-10 02:59:08 C 05 57 26.55 +11 08 55.0 c A24
2012-12-10 03:19:16 C 05 57 24.76 +11 09 01.5 c A24
2012-12-10 03:42:40 C 05 57 22.59 +11 09 08.5 c A24
2012-12-10 04:02:05 C 05 57 20.84 +11 09 13.6 c A24
2012-12-10 04:04:10 C 05 57 20.65 +11 09 14.9 c A24
2012-12-11 03:37:16 C 05 55 16.75 +11 16 46.4 c A24
2012-12-11 03:39:22 C 05 55 16.56 +11 16 47.4 c A24
2012-12-11 03:59:28 C 05 55 14.82 +11 16 53.2 c A24
2012-12-11 04:01:12 C 05 55 14.61 +11 16 53.9 c A24
2012-12-11 04:44:21 C 05 55 10.79 +11 17 07.2 c A24
2012-12-12 02:08:17 C 05 53 19.69 +11 24 02.4 c A24
2012-12-12 02:09:19 C 05 53 19.61 +11 24 02.3 c A24
2012-12-12 02:10:21 C 05 53 19.51 +11 24 03.1 c A24
2012-12-12 02:11:24 C 05 53 19.42 +11 24 03.1 c A24
2012-12-12 03:13:13 C 05 53 13.98 +11 24 23.0 c A24
2012-12-12 03:14:15 C 05 53 13.86 +11 24 23.4 c A24
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)