154276 (2002 SY50)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6889134523 ± 3.42e-09
Semi-major axis (a)1.7052788111 AU ± 2.85e-09
Inclination (i)8.74051555° ± 1.84e-06
Long. of Asc. Node (Ω)34.01625558° ± 3.34e-06
Arg. of Perihelion (ω)99.70762330° ± 3.15e-06
Mean Anomaly (M)105.16927769° ± 9.00e-07
Mean Motion (n)0.4426079216°/day ± 1.11e-09
Perihelion dist (q)0.53048930 AU ± 5.90e-09
Aphelion dist (Q)2.88006832 AU ± 7.56e-09
Orbital Period2.22686092 yr ± 5.58e-09
Physical Parameters
H (abs. magnitude)17.61
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.291″
Uncertainty0
Orbit TypeApollo
MOID0.003664 AU
Observations Used1098
Radar Obs Used7
Oppositions1
Arc Total2002-2025
First Observation Used2002-08-25
Last Observation Used2025-06-29
Observations (1204)
Date Type RA Dec Mag Band Observatory
2002-10-25 02:12:46 C 00 11 30.75 -08 26 46.6 14.8 c 644
2002-10-25 02:42:52 C 00 11 13.45 -08 27 54.4 14.0 c 644
2002-10-25 03:13:01 C 00 10 56.06 -08 29 02.1 14.4 c 644
2002-10-25 11:40:47 C 00 06 01.00 -08 48 11.3 379
2002-10-25 11:42:58 C 00 05 59.64 -08 48 16.3 379
2002-10-25 11:51:18 C 00 05 54.57 -08 48 35.4 379
2002-10-25 11:52:33 C 00 05 53.81 -08 48 38.2 379
2002-10-25 11:54:38 C 00 05 52.53 -08 48 43.5 379
2002-10-25 11:56:32 C 00 05 51.41 -08 48 47.9 379
2002-10-25 12:01:35 C 00 05 48.30 -08 48 59.2 379
2002-10-25 13:28:22 C 00 04 54.231 -08 51 01.48 e 413
2002-10-25 13:28:59 C 00 04 53.857 -08 51 02.89 e 413
2002-10-25 13:29:24 C 00 04 53.600 -08 51 03.85 e 413
2002-10-25 22:04:34 C 23 59 39.00 -09 12 33.1 232
2002-10-25 22:06:10 C 23 59 37.95 -09 12 37.1 232
2002-10-25 22:08:41 C 23 59 36.34 -09 12 43.0 232
2002-10-25 22:11:07 C 23 59 34.76 -09 12 48.6 232
2002-10-26 09:50:04 C 23 51 59.28 -09 40 39.8 c 608
2002-10-26 10:05:15 C 23 51 48.80 -09 41 17.1 c 608
2002-10-26 17:28:18 C 23 46 50.30 -10 00 08.1 c 151
2002-10-26 17:29:57 C 23 46 49.12 -10 00 12.8 c 151
2002-10-26 17:31:57 C 23 46 47.66 -10 00 17.6 c 151
2002-10-26 17:33:45 C 23 46 46.33 -10 00 21.9 c 151
2002-10-26 17:34:36 C 23 46 45.74 -10 00 24.6 c 151
2002-10-26 17:37:58 C 23 46 43.41 -10 00 32.2 c 151
2002-10-26 17:40:01 C 23 46 41.95 -10 00 38.1 c 151
2002-10-26 17:40:52 C 23 46 41.33 -10 00 40.2 c 151
2002-10-26 17:42:04 C 23 46 40.50 -10 00 43.3 c 151
2002-10-26 17:43:37 C 23 46 39.39 -10 00 47.4 c 151
2002-10-26 18:50:55 C 23 45 51.78 -10 03 33.6 d J87
2002-10-26 18:51:58 C 23 45 51.03 -10 03 36.3 d J87
2002-10-26 18:53:02 C 23 45 50.22 -10 03 39.0 d J87
2002-10-26 19:32:47 C 23 45 21.66 -10 05 21.2 d J87
2002-10-26 19:33:52 C 23 45 20.81 -10 05 23.6 d J87
2002-10-26 19:34:54 C 23 45 20.06 -10 05 26.7 d J87
2002-10-26 20:10:43 C 23 44 54.06 -10 06 58.2 d J87
2002-10-26 20:11:45 C 23 44 53.29 -10 07 01.3 d J87
2002-10-26 20:12:48 C 23 44 52.56 -10 07 03.7 d J87
2002-10-26 21:11:55 C 23 44 08.53 -10 09 40.8 c 048
2002-10-26 21:14:49 C 23 44 06.36 -10 09 47.7 c 048
2002-10-26 21:18:12 C 23 44 03.91 -10 09 57.1 c 048
2002-10-26 21:23:36 C 23 43 59.96 -10 10 10.2 c 048
2002-10-26 21:27:23 C 23 43 57.11 -10 10 20.9 c 048
2002-10-26 21:52:35 C 23 43 39.08 -10 11 21.4 c 587
2002-10-26 21:53:47 C 23 43 38.75 -10 11 19.4 939
2002-10-26 21:54:10 C 23 43 37.89 -10 11 25.4 c 587
2002-10-26 21:55:46 C 23 43 36.74 -10 11 29.4 c 587
2002-10-26 21:57:21 C 23 43 35.57 -10 11 33.6 c 587
2002-10-26 21:58:07 C 23 43 35.55 -10 11 30.5 939
2002-10-26 22:02:26 C 23 43 32.37 -10 11 41.7 939
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2002-10-28 07:00:00 612496.5 8 Hz 8560 -14 -14
2002-10-30 01:10:00 470127.3 10 Hz 8560 -14 -14
2002-10-30 02:30:00 91610928.2 5 us 8560 -14 -14
2002-10-31 04:30:00 87371438.4 5 us 8560 -14 -14
2002-11-02 02:20:00 83582561.3 5 us 8560 -14 -14
2002-11-04 04:00:00 85265697 5 us 8560 -14 -14
2002-11-05 02:00:00 87864822.8 5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)