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
2002-10-19 20:02:30 C 01 02 58.55 -04 46 01.4 c 204
2002-10-19 21:55:07 C 01 02 24.87 -04 48 31.5 d 176
2002-10-19 21:58:52 C 01 02 23.75 -04 48 36.5 d 176
2002-10-19 22:02:53 C 01 02 22.54 -04 48 42.0 d 176
2002-10-19 22:06:49 C 01 02 21.35 -04 48 47.3 d 176
2002-10-19 22:15:05 C 01 02 18.95 -04 49 01.1 232
2002-10-19 22:16:54 C 01 02 18.27 -04 49 02.6 232
2002-10-19 22:20:34 C 01 02 16.99 -04 49 06.8 232
2002-10-21 01:18:14 C 00 53 50.61 -05 27 52.6 c 846
2002-10-21 01:23:14 C 00 53 48.89 -05 28 00.3 c 846
2002-10-21 01:27:14 C 00 53 47.52 -05 28 06.3 c 846
2002-10-21 13:48:51 C 00 49 28.16 -05 47 17.9 379
2002-10-21 13:50:07 C 00 49 27.69 -05 47 20.3 379
2002-10-21 14:03:36 C 00 49 22.67 -05 47 42.1 379
2002-10-21 14:07:31 C 00 49 21.23 -05 47 48.1 379
2002-10-22 13:49:07 C 00 40 19.90 -06 27 24.6 379
2002-10-22 13:53:47 C 00 40 17.90 -06 27 33.3 379
2002-10-22 20:45:50 C 00 37 28.93 -06 39 54.3 d 118
2002-10-22 20:46:52 C 00 37 28.48 -06 39 56.1 d 118
2002-10-22 20:50:59 C 00 37 26.73 -06 40 03.6 d 118
2002-10-23 19:57:05 C 00 27 08.28 -07 23 40.1 c J93
2002-10-23 19:59:09 C 00 27 07.23 -07 23 44.3 c J93
2002-10-23 20:00:12 C 00 27 06.80 -07 23 46.6 c J93
2002-10-23 20:01:15 C 00 27 06.20 -07 23 48.8 c J93
2002-10-24 11:38:30 C 00 19 19.876 -07 54 14.47 e 413
2002-10-24 11:40:03 C 00 19 19.054 -07 54 17.73 e 413
2002-10-24 11:41:12 C 00 19 18.436 -07 54 20.14 e 413
2002-10-24 11:46:00 C 00 19 15.849 -07 54 30.25 e 413
2002-10-24 11:46:53 C 00 19 15.385 -07 54 32.09 e 413
2002-10-24 11:48:14 C 00 19 14.662 -07 54 34.98 e 413
2002-10-24 13:15:55 C 00 18 28.34 -07 58 51.3 379
2002-10-24 13:17:23 C 00 18 27.53 -07 58 54.3 379
2002-10-24 13:18:39 C 00 18 26.84 -07 58 57.1 379
2002-10-24 18:49:56 C 00 15 32.93 -08 10 52.4 c 048
2002-10-24 18:50:31 C 00 15 32.57 -08 10 55.4 c 048
2002-10-24 18:51:07 C 00 15 32.28 -08 10 54.8 c 048
2002-10-24 18:51:41 C 00 15 31.95 -08 10 57.8 c 048
2002-10-24 18:52:17 C 00 15 31.61 -08 10 58.7 c 048
2002-10-24 19:35:24 C 00 15 07.76 -08 12 30.9 d 118
2002-10-24 19:39:19 C 00 15 05.57 -08 12 39.6 d 118
2002-10-24 19:42:27 C 00 15 03.84 -08 12 46.2 d 118
2002-10-24 20:00:46 C 00 14 54.67 -08 13 22.5 d 170
2002-10-24 20:01:37 C 00 14 54.19 -08 13 24.2 d 170
2002-10-24 20:03:58 C 00 14 52.90 -08 13 29.2 d 170
2002-10-24 20:05:47 C 00 14 51.85 -08 13 33.3 d 170
2002-10-24 20:14:03 C 00 14 47.27 -08 13 51.2 d 170
2002-10-24 20:16:12 C 00 14 46.05 -08 13 55.9 d 170
2002-10-24 21:05:00 C 00 14 18.77 -08 15 42.1 d 170
2002-10-24 21:10:41 C 00 14 15.61 -08 15 54.4 d 170
2002-10-24 21:14:22 C 00 14 13.54 -08 16 02.4 d 170
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)