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
2002-10-08 21:59:34 C 01 48 12.98 -00 52 04.0 d 611
2002-10-08 22:01:18 C 01 48 12.80 -00 52 04.4 d 611
2002-10-08 22:05:18 C 01 48 12.37 -00 52 07.6 d 611
2002-10-08 22:10:31 C 01 48 11.88 -00 52 09.8 d 611
2002-10-09 15:21:44 C 01 46 28.79 -01 01 47.7 c 322
2002-10-09 15:37:15 C 01 46 27.08 -01 01 57.0 c 322
2002-10-09 15:44:27 C 01 46 26.30 -01 02 01.3 c 322
2002-10-10 00:19:45 C 01 45 31.66 -01 08 00.2 d J95
2002-10-10 00:20:59 C 01 45 31.59 -01 08 01.0 d J95
2002-10-10 00:22:14 C 01 45 31.38 -01 08 01.6 d J95
2002-10-10 00:23:30 C 01 45 31.23 -01 08 02.7 d J95
2002-10-10 14:26:06 C 01 43 58.74 -01 16 55.8 355
2002-10-10 14:28:58 C 01 43 58.40 -01 16 57.8 355
2002-10-10 14:31:44 C 01 43 58.05 -01 16 59.2 355
2002-10-10 14:34:54 C 01 43 57.69 -01 17 01.6 355
2002-10-11 06:08:41 C 01 42 08.69 -01 27 25.9 c 649
2002-10-11 06:12:50 C 01 42 08.17 -01 27 28.6 c 649
2002-10-11 06:17:03 C 01 42 07.63 -01 27 31.6 c 649
2002-10-11 13:58:31 C 01 41 11.56 -01 32 48.8 379
2002-10-11 14:00:49 C 01 41 11.31 -01 32 50.1 379
2002-10-11 14:06:12 C 01 41 10.59 -01 32 54.3 379
2002-10-11 14:08:52 C 01 41 10.21 -01 32 55.9 379
2002-10-11 14:37:00 C 01 41 06.67 -01 33 15.4 d 360
2002-10-11 14:40:11 C 01 41 06.25 -01 33 17.7 d 360
2002-10-11 14:43:09 C 01 41 05.86 -01 33 19.7 d 360
2002-10-12 04:36:45 C 01 39 19.94 -01 43 13.8 i 921
2002-10-12 04:49:16 C 01 39 18.26 -01 43 22.8 i 921
2002-10-12 04:52:35 C 01 39 17.84 -01 43 25.0 i 921
2002-10-12 05:22:36 C 01 39 13.65 -01 43 47.6 i 921
2002-10-12 12:23:40 C 01 38 17.78 -01 48 59.4 367
2002-10-12 12:28:09 C 01 38 17.15 -01 49 02.5 367
2002-10-12 12:32:40 C 01 38 16.52 -01 49 05.9 367
2002-10-12 13:07:00 C 01 38 11.52 -01 49 31.0 d 379
2002-10-12 13:09:40 C 01 38 11.13 -01 49 33.4 d 379
2002-10-12 13:12:24 C 01 38 10.72 -01 49 35.4 d 379
2002-10-12 20:35:27 C 01 37 09.75 -01 55 13.1 c 468
2002-10-12 20:40:28 C 01 37 09.02 -01 55 17.0 c 468
2002-10-12 20:45:28 C 01 37 08.29 -01 55 20.8 c 468
2002-10-12 20:50:28 C 01 37 07.56 -01 55 24.6 c 468
2002-10-12 20:55:27 C 01 37 06.83 -01 55 28.5 c 468
2002-10-12 21:19:07 C 01 37 03.74 -01 55 46.0 941
2002-10-12 21:19:47 C 01 37 03.68 -01 55 46.3 941
2002-10-12 21:20:30 C 01 37 03.54 -01 55 46.7 941
2002-10-12 21:21:10 C 01 37 03.48 -01 55 47.1 941
2002-10-12 21:21:53 C 01 37 03.31 -01 55 47.7 941
2002-10-12 21:22:33 C 01 37 03.27 -01 55 48.5 941
2002-10-12 21:23:16 C 01 37 03.14 -01 55 48.9 941
2002-10-12 21:43:29 C 01 36 59.75 -01 56 05.6 c 468
2002-10-12 21:48:29 C 01 36 59.01 -01 56 09.3 c 468
2002-10-12 21:53:28 C 01 36 58.27 -01 56 13.1 c 468
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)