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
2024-01-13 02:52:53 C 02 17 04.924 +05 58 57.65 V G96
2024-01-13 03:00:28 C 02 17 05.795 +05 59 04.56 V G96
2024-01-13 03:08:04 C 02 17 06.680 +05 59 11.18 V G96
2024-03-02 06:06:07 C 04 16 46.944 +17 36 52.09 X F51
2024-03-02 06:24:46 C 04 16 48.653 +17 36 58.54 X F51
2024-03-02 07:02:02 C 04 16 52.080 +17 37 11.92 X F51
2025-02-22 14:44:11 C 13 14 48.424 -03 19 10.78 X F51
2025-02-22 14:59:14 C 13 14 48.157 -03 19 07.41 X F51
2025-02-22 15:29:06 C 13 14 47.616 -03 19 00.52 X F51
2025-02-28 13:05:45 C 13 11 49.776 -02 41 57.90 X F52
2025-02-28 13:21:22 C 13 11 49.368 -02 41 53.56 X F52
2025-02-28 13:37:00 C 13 11 48.931 -02 41 49.14 X F52
2025-02-28 13:52:40 C 13 11 48.519 -02 41 44.49 X F52
2025-03-25 08:14:50 C 12 47 25.195 +01 03 31.21 V G96
2025-03-25 08:22:17 C 12 47 24.785 +01 03 34.92 V G96
2025-03-25 08:29:42 C 12 47 24.364 +01 03 38.30 V G96
2025-03-25 08:37:09 C 12 47 23.942 +01 03 41.76 V G96
2025-03-26 10:09:49 C 12 46 01.188 +01 14 56.98 X F51
2025-03-26 10:27:14 C 12 46 00.203 +01 15 04.71 X F51
2025-03-26 10:44:45 C 12 45 59.220 +01 15 12.35 X F51
2025-03-26 11:02:20 C 12 45 58.232 +01 15 20.16 X F51
2025-04-22 06:46:45 C 12 11 01.309 +05 28 02.53 V V00
2025-04-22 06:54:50 C 12 11 00.906 +05 28 04.98 V V00
2025-04-22 07:02:55 C 12 11 00.532 +05 28 07.36 V V00
2025-04-22 07:11:00 C 12 11 00.150 +05 28 09.73 V V00
2025-04-26 07:25:14 C 12 06 45.544 +05 54 17.82 X F52
2025-04-26 07:40:10 C 12 06 44.880 +05 54 21.57 X F52
2025-04-26 07:55:06 C 12 06 44.242 +05 54 25.11 X F52
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)