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
2002-10-04 08:49:07 C 01 56 47.033 +00 03 18.72 645
2002-10-04 08:49:43 C 01 56 46.956 +00 03 17.97 645
2002-10-04 08:50:19 C 01 56 46.955 +00 03 18.05 645
2002-10-04 08:55:33 C 01 56 46.71 +00 03 16.7 16.7 c 704
2002-10-04 09:05:00 C 01 56 46.06 +00 03 12.6 16.2 c 704
2002-10-04 09:17:47 C 01 56 45.18 +00 03 06.6 16.7 c 704
2002-10-05 07:44:56 C 01 55 16.92 -00 07 01.2 16.2 c 704
2002-10-05 08:07:41 C 01 55 15.21 -00 07 11.6 16.6 c 704
2002-10-05 08:30:36 C 01 55 13.48 -00 07 22.3 16.9 c 704
2002-10-05 08:53:30 C 01 55 11.76 -00 07 33.0 17.1 c 704
2002-10-05 09:16:21 C 01 55 10.03 -00 07 43.6 16.8 c 704
2002-10-05 09:51:29 C 01 55 07.396 -00 08 00.55 e 645
2002-10-05 09:56:29 C 01 55 07.027 -00 08 02.84 17.25 e 645
2002-10-05 20:56:16 C 01 54 21.69 -00 13 19.0 a 159
2002-10-05 21:00:37 C 01 54 21.37 -00 13 21.1 a 159
2002-10-05 21:53:40 C 01 54 17.60 -00 13 45.4 m 620
2002-10-05 21:55:01 C 01 54 17.47 -00 13 46.2 m 620
2002-10-05 21:57:42 C 01 54 17.26 -00 13 47.8 m 620
2002-10-05 22:07:14 C 01 54 16.54 -00 13 52.7 m 620
2002-10-05 22:11:16 C 01 54 16.30 -00 13 54.1 m 620
2002-10-05 23:33:00 C 01 54 09.84 -00 14 32.8 941
2002-10-05 23:34:16 C 01 54 09.74 -00 14 33.5 941
2002-10-05 23:35:31 C 01 54 09.64 -00 14 33.9 941
2002-10-05 23:36:46 C 01 54 09.51 -00 14 34.4 941
2002-10-05 23:38:00 C 01 54 09.42 -00 14 35.2 941
2002-10-06 07:52:52 C 01 53 32.45 -00 18 35.5 c 670
2002-10-06 09:59:43 C 01 53 22.01 -00 19 38.6 c 670
2002-10-06 10:56:10 C 01 53 17.35 -00 20 06.6 c 670
2002-10-07 07:32:00 C 01 51 39.87 -00 30 39.8 c 670
2002-10-07 07:32:51 C 01 51 39.35 -00 30 42.2 712
2002-10-07 07:37:24 C 01 51 38.98 -00 30 45.2 712
2002-10-07 07:42:15 C 01 51 38.32 -00 30 48.9 712
2002-10-07 08:43:55 C 01 51 33.39 -00 31 18.0 c 670
2002-10-07 10:22:21 C 01 51 24.49 -00 32 09.9 c 670
2002-10-07 11:18:11 C 01 51 19.47 -00 32 39.6 c 670
2002-10-07 19:51:16 C 01 50 37.52 -00 37 19.7 c 151
2002-10-07 19:54:09 C 01 50 37.29 -00 37 21.5 c 151
2002-10-07 19:55:56 C 01 50 37.12 -00 37 22.7 c 151
2002-10-07 19:58:27 C 01 50 36.88 -00 37 23.5 c 151
2002-10-08 05:42:25 C 01 49 44.76 -00 42 41.1 c 699
2002-10-08 06:07:44 C 01 49 42.31 -00 42 55.1 c 699
2002-10-08 06:13:24 C 01 49 41.62 -00 43 03.2 712
2002-10-08 06:15:45 C 01 49 40.86 -00 43 01.6 d H59
2002-10-08 06:33:04 C 01 49 39.85 -00 43 09.3 c 699
2002-10-08 06:52:43 C 01 49 37.22 -00 43 22.3 d H59
2002-10-08 06:58:20 C 01 49 37.41 -00 43 23.5 c 699
2002-10-08 07:18:33 C 01 49 34.73 -00 43 36.5 d H59
2002-10-08 14:57:40 C 01 48 53.35 -00 47 23.4 c 322
2002-10-08 15:05:06 C 01 48 52.60 -00 47 28.0 c 322
2002-10-08 21:57:53 C 01 48 13.16 -00 52 02.6 d 611
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)