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
2002-10-01 21:59:49 C 02 00 05.03 +00 27 13.0 c 587
2002-10-01 22:02:01 C 02 00 04.92 +00 27 12.8 c 159
2002-10-01 22:02:58 C 02 00 04.88 +00 27 12.0 c 587
2002-10-01 22:04:20 C 02 00 04.80 +00 27 11.9 c 159
2002-10-01 22:29:04 C 02 00 03.36 +00 27 01.5 d 118
2002-10-01 22:31:42 C 02 00 03.25 +00 27 00.1 c 246
2002-10-01 22:32:05 C 02 00 03.17 +00 27 00.0 d 118
2002-10-01 22:33:29 C 02 00 03.15 +00 26 59.6 c 246
2002-10-01 22:35:19 C 02 00 03.05 +00 26 58.6 c 246
2002-10-01 22:36:26 C 02 00 02.94 +00 26 58.4 d 118
2002-10-01 22:37:11 C 02 00 02.95 +00 26 57.9 c 246
2002-10-01 22:38:59 C 02 00 02.86 +00 26 57.3 c 246
2002-10-01 22:41:09 C 02 00 02.74 +00 26 56.5 c 246
2002-10-01 22:42:09 C 02 00 02.68 +00 26 56.1 d 118
2002-10-02 00:58:03 C 01 59 55.43 +00 26 08.6 m 620
2002-10-02 01:12:51 C 01 59 54.68 +00 26 02.9 m 620
2002-10-02 01:22:23 C 01 59 54.21 +00 25 59.2 m 620
2002-10-02 05:31:55 C 01 59 41.56 +00 24 49.2 c 844
2002-10-02 05:33:52 C 01 59 41.48 +00 24 49.2 c 844
2002-10-02 05:42:38 C 01 59 40.88 +00 24 44.7 c 844
2002-10-02 06:06:29 C 01 59 40.34 +00 24 09.9 d 850
2002-10-02 06:51:00 C 01 59 37.82 +00 23 53.2 d 850
2002-10-02 09:25:21 C 01 59 29.42 +00 22 53.9 16.5 c 704
2002-10-02 09:47:54 C 01 59 28.13 +00 22 45.1 17.4 c 704
2002-10-02 09:54:00 C 01 59 27.81 +00 22 42.3 16.8 c 704
2002-10-02 10:10:24 C 01 59 26.86 +00 22 36.4 17.6 c 704
2002-10-02 10:16:15 C 01 59 26.52 +00 22 33.8 16.8 c 704
2002-10-02 10:32:57 C 01 59 25.56 +00 22 27.5 17.0 c 704
2002-10-02 10:38:25 C 01 59 25.27 +00 22 25.4 16.7 c 704
2002-10-02 10:55:21 C 01 59 24.30 +00 22 18.8 16.9 c 704
2002-10-02 11:00:30 C 01 59 24.03 +00 22 16.9 16.7 c 704
2002-10-02 12:52:55 C 01 59 19.73 +00 21 57.5 17.5 m 422
2002-10-02 12:54:51 C 01 59 19.61 +00 21 56.8 17.4 m 422
2002-10-02 12:56:12 C 01 59 19.53 +00 21 56.3 17.4 m 422
2002-10-02 22:50:51 C 01 58 47.30 +00 17 31.2 d 118
2002-10-02 22:54:54 C 01 58 47.09 +00 17 29.1 d 118
2002-10-02 23:00:15 C 01 58 46.74 +00 17 27.2 d 118
2002-10-02 23:03:08 C 01 58 46.59 +00 17 26.0 d 118
2002-10-02 23:32:28 C 01 58 44.83 +00 17 11.4 d 049
2002-10-02 23:35:22 C 01 58 44.65 +00 17 10.3 d 049
2002-10-02 23:37:58 C 01 58 44.49 +00 17 09.2 d 049
2002-10-02 23:40:39 C 01 58 44.33 +00 17 08.4 d 049
2002-10-02 23:43:31 C 01 58 44.16 +00 17 07.1 d 049
2002-10-02 23:46:33 C 01 58 44.01 +00 17 06.1 d 049
2002-10-03 04:00:29 C 01 58 30.80 +00 15 29.6 d 850
2002-10-03 04:21:59 C 01 58 29.46 +00 15 20.7 d 850
2002-10-03 04:58:29 C 01 58 27.25 +00 15 05.6 d 850
2002-10-03 07:33:23 C 01 58 18.12 +00 14 02.3 16.8 i 678
2002-10-03 07:38:08 C 01 58 17.81 +00 14 01.1 16.4 c 704
2002-10-03 07:48:44 C 01 58 17.14 +00 13 56.4 16.5 c 704
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)