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
2002-10-12 21:58:28 C 01 36 57.52 -01 56 17.3 c 468
2002-10-12 22:03:29 C 01 36 56.79 -01 56 21.0 c 468
2002-10-12 22:56:49 C 01 36 49.19 -01 57 01.3 d 176
2002-10-12 22:59:06 C 01 36 48.85 -01 57 03.0 d 176
2002-10-12 23:00:48 C 01 36 48.60 -01 57 04.3 d 176
2002-10-12 23:03:08 C 01 36 48.25 -01 57 06.1 d 176
2002-10-12 23:04:18 C 01 36 48.20 -01 57 07.0 939
2002-10-12 23:04:45 C 01 36 48.01 -01 57 07.3 d 176
2002-10-12 23:07:35 C 01 36 47.27 -01 57 10.5 c 468
2002-10-12 23:12:34 C 01 36 46.52 -01 57 14.4 c 468
2002-10-12 23:14:02 C 01 36 46.73 -01 57 14.4 939
2002-10-12 23:17:34 C 01 36 45.77 -01 57 18.2 c 468
2002-10-12 23:22:35 C 01 36 45.00 -01 57 22.0 c 468
2002-10-12 23:23:47 C 01 36 45.25 -01 57 22.1 939
2002-10-12 23:27:35 C 01 36 44.26 -01 57 25.8 c 468
2002-10-13 00:41:35 C 01 36 33.21 -01 58 22.7 c 468
2002-10-13 00:46:35 C 01 36 32.46 -01 58 26.4 c 468
2002-10-13 00:51:34 C 01 36 31.72 -01 58 30.3 c 468
2002-10-13 00:56:34 C 01 36 30.97 -01 58 33.9 c 468
2002-10-13 01:01:35 C 01 36 30.21 -01 58 37.8 c 468
2002-10-13 01:34:09 C 01 36 25.77 -01 59 01.4 i 212
2002-10-13 01:40:15 C 01 36 24.80 -01 59 07.2 i 212
2002-10-13 12:48:35 C 01 34 48.67 -02 07 52.4 d 379
2002-10-13 12:54:44 C 01 34 47.73 -02 07 57.5 d 379
2002-10-13 12:58:02 C 01 34 47.21 -02 08 00.1 d 379
2002-10-13 13:04:27 C 01 34 46.20 -02 08 05.5 d 379
2002-10-13 13:10:42 C 01 34 45.22 -02 08 10.5 d 379
2002-10-14 12:33:00 C 01 31 04.98 -02 27 41.1 367
2002-10-14 12:37:29 C 01 31 04.22 -02 27 45.0 367
2002-10-14 12:42:00 C 01 31 03.45 -02 27 49.1 367
2002-10-14 14:20:27 C 01 30 45.61 -02 28 31.9 423
2002-10-14 14:25:03 C 01 30 44.81 -02 28 36.0 423
2002-10-14 14:36:35 C 01 30 42.84 -02 28 46.3 423
2002-10-14 14:38:53 C 01 30 42.41 -02 28 47.9 423
2002-10-15 07:48:57 C 01 27 44.80 -02 44 57.1 d 718
2002-10-15 07:59:24 C 01 27 42.86 -02 45 06.5 d 718
2002-10-15 08:39:06 C 01 27 35.50 -02 45 38.8 14.6 c 644
2002-10-15 08:46:21 C 01 27 34.02 -02 45 49.6 d 718
2002-10-15 09:08:32 C 01 27 29.94 -02 46 06.0 14.8 c 644
2002-10-15 09:44:43 C 01 27 23.12 -02 46 39.4 15.1 c 644
2002-10-15 21:07:20 C 01 25 19.34 -02 57 29.1 c 213
2002-10-15 21:08:57 C 01 25 19.07 -02 57 30.8 c 213
2002-10-15 21:12:42 C 01 25 18.36 -02 57 35.0 c 213
2002-10-15 21:15:34 C 01 25 17.73 -02 57 36.7 c 213
2002-10-15 21:55:27 C 01 25 09.97 -02 58 14.2 939
2002-10-15 22:04:42 C 01 25 08.13 -02 58 23.4 939
2002-10-15 22:14:17 C 01 25 06.25 -02 58 32.7 939
2002-10-16 13:03:30 C 01 22 11.67 -03 13 11.5 379
2002-10-16 13:04:49 C 01 22 11.39 -03 13 12.9 379
2002-10-16 13:08:31 C 01 22 10.61 -03 13 16.6 379
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)