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
2002-10-27 11:52:04 C 23 33 13.65 -10 47 37.4 379
2002-10-27 11:56:35 C 23 33 10.06 -10 47 49.3 379
2002-10-27 12:00:35 C 23 33 06.87 -10 48 00.0 379
2002-10-27 12:01:49 C 23 33 05.90 -10 48 03.2 379
2002-10-27 19:32:58 C 23 27 09.62 -11 08 21.1 c J93
2002-10-27 19:35:04 C 23 27 07.91 -11 08 26.3 c J93
2002-10-27 19:37:10 C 23 27 06.22 -11 08 33.3 c J93
2002-10-27 21:02:37 C 23 25 53.86 -11 12 16.0 15.4 i 057
2002-10-27 21:07:24 C 23 25 49.89 -11 12 29.4 16.7 i 057
2002-10-27 21:11:45 C 23 25 46.26 -11 12 40.3 15.3 i 057
2002-10-27 21:14:42 C 23 25 43.78 -11 12 49.7 15.5 i 057
2002-10-27 21:16:37 C 23 25 42.06 -11 12 53.1 15.5 i 057
2002-10-27 21:19:39 C 23 25 39.63 -11 13 01.7 16.5 i 057
2002-10-28 03:25:17 C 23 20 39.43 -11 29 24.5 c 670
2002-10-28 04:51:54 C 23 19 24.16 -11 33 21.8 c 670
2002-10-28 06:23:49 C 23 18 03.63 -11 37 31.8 c 670
2002-10-28 07:55:21 C 23 16 43.15 -11 41 38.9 c 670
2002-10-28 12:22:01 C 23 12 52.23 -11 53 55.9 379
2002-10-28 12:28:03 C 23 12 46.79 -11 54 13.2 379
2002-10-28 12:29:19 C 23 12 45.62 -11 54 16.7 379
2002-10-28 12:38:15 C 23 12 37.53 -11 54 41.2 379
2002-10-28 18:29:13 C 23 07 23.61 -12 11 04.3 c 048
2002-10-28 18:29:47 C 23 07 23.04 -12 11 05.8 c 048
2002-10-28 18:30:23 C 23 07 22.47 -12 11 07.6 c 048
2002-10-28 18:30:58 C 23 07 21.94 -12 11 08.9 c 048
2002-10-29 04:14:29 C 22 58 12.91 -12 37 49.9 15.6 c 704
2002-10-29 04:39:38 C 22 57 48.16 -12 38 59.3 14.7 c 704
2002-10-29 04:49:15 C 22 57 38.63 -12 39 24.1 c 448
2002-10-29 04:50:38 C 22 57 37.28 -12 39 27.7 c 448
2002-10-29 04:52:25 C 22 57 35.57 -12 39 32.4 c 448
2002-10-29 05:04:37 C 22 57 23.52 -12 40 07.9 14.5 c 704
2002-10-29 05:29:28 C 22 56 58.99 -12 41 15.7 14.8 c 704
2002-10-29 10:33:10 C 22 52 03.50 -12 53 45.9 m 428
2002-10-29 10:34:07 C 22 52 02.55 -12 53 48.5 m 428
2002-10-29 10:35:05 C 22 52 01.54 -12 53 51.2 m 428
2002-10-29 10:36:02 C 22 52 00.60 -12 53 53.7 m 428
2002-10-29 11:06:06 C 22 51 31.58 -12 56 48.9 379
2002-10-29 11:08:53 C 22 51 28.72 -12 56 56.5 379
2002-10-29 11:14:59 C 22 51 22.56 -12 57 13.8 379
2002-10-29 11:16:16 C 22 51 21.23 -12 57 17.3 379
2002-10-29 17:47:04 C 22 44 48.63 -13 15 20.7 c 185
2002-10-29 17:50:44 C 22 44 44.77 -13 15 31.0 c 185
2002-10-29 17:53:28 C 22 44 41.87 -13 15 38.5 c 185
2002-10-29 17:54:22 C 22 44 41.01 -13 15 41.0 c 185
2002-10-29 17:55:27 C 22 44 39.88 -13 15 43.6 c 185
2002-10-29 17:58:40 C 22 44 36.50 -13 15 53.1 c 185
2002-10-29 17:59:52 C 22 44 35.31 -13 15 54.9 c 185
2002-10-29 18:02:03 C 22 44 32.98 -13 16 02.4 c 185
2002-10-29 18:03:12 C 22 44 31.82 -13 16 04.9 c 185
2002-10-29 18:04:13 C 22 44 30.71 -13 16 08.1 c 185
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)