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
2022-10-20 08:09:34 C 23 26 44.345 -13 34 34.90 V T05
2022-10-20 08:21:11 C 23 26 42.149 -13 34 41.56 V T05
2022-10-20 08:37:30 C 23 26 39.038 -13 34 50.48 V T05
2022-10-20 12:14:20 C 23 25 59.825 -13 36 34.78 V P07
2022-10-20 13:20:25 C 23 25 47.203 -13 37 11.93 V P07
2022-10-20 13:24:14 C 23 25 46.498 -13 37 13.84 V P07
2022-10-20 14:06:06 C 23 25 38.496 -13 37 37.06 V P07
2022-10-20 20:49:24 C 23 24 23.662 -13 41 14.14 V M22
2022-10-20 20:53:19 C 23 24 22.901 -13 41 15.94 V M22
2022-10-20 21:03:48 C 23 24 20.906 -13 41 21.91 V M22
2022-10-20 21:19:47 C 23 24 17.873 -13 41 30.41 V M22
2022-10-21 03:19:58 C 23 23 10.970 -13 44 45.53 V W68
2022-10-21 03:47:47 C 23 23 05.638 -13 45 00.25 V W68
2022-10-21 04:13:07 C 23 23 00.804 -13 45 13.68 V W68
2022-10-21 04:18:40 C 23 22 59.731 -13 45 16.85 V W68
2022-10-22 01:51:17 C 23 18 58.932 -13 56 36.28 V W68
2022-10-22 01:57:02 C 23 18 57.835 -13 56 39.44 V W68
2022-10-22 02:07:25 C 23 18 55.793 -13 56 44.84 V W68
2022-10-22 02:14:13 C 23 18 54.482 -13 56 48.23 V W68
2022-10-22 02:18:35 C 23 18 53.652 -13 56 50.53 V W68
2022-10-22 02:23:53 C 23 18 52.642 -13 56 53.38 V W68
2022-10-22 02:26:20 C 23 18 52.147 -13 56 54.42 V W68
2022-10-22 03:14:44 C 23 18 42.787 -13 57 19.51 V W68
2022-10-22 09:49:47 C 23 17 28.186 -14 00 57.96 V T08
2022-10-22 09:53:46 C 23 17 27.403 -14 00 59.72 V T08
2022-10-22 10:05:44 C 23 17 25.104 -14 01 05.66 V T08
2022-10-22 10:20:23 C 23 17 22.258 -14 01 13.04 V T08
2022-10-23 02:08:32 C 23 14 24.180 -14 08 47.22 V W68
2022-10-23 02:13:05 C 23 14 23.268 -14 08 49.27 V W68
2022-10-23 02:22:11 C 23 14 21.504 -14 08 53.88 V W68
2022-10-23 02:36:27 C 23 14 18.727 -14 09 00.50 V W68
2022-10-23 21:25:24 C 23 10 44.172 -14 17 58.20 V M22
2022-10-23 21:29:22 C 23 10 43.409 -14 17 59.86 V M22
2022-10-23 21:43:13 C 23 10 40.709 -14 18 06.12 V M22
2022-10-23 22:21:01 C 23 10 33.343 -14 18 23.40 V M22
2022-10-24 20:28:27 C 23 06 20.554 -14 28 24.96 V M22
2022-10-24 20:32:21 C 23 06 19.783 -14 28 26.47 V M22
2022-10-24 20:41:29 C 23 06 17.978 -14 28 30.65 V M22
2022-10-24 20:58:42 C 23 06 14.616 -14 28 37.92 V M22
2022-10-25 01:51:14 C 23 05 19.027 -14 30 46.62 V W68
2022-10-25 01:56:54 C 23 05 17.902 -14 30 49.25 V W68
2022-10-25 02:07:41 C 23 05 15.778 -14 30 53.82 V W68
2022-10-25 02:51:11 C 23 05 07.198 -14 31 12.58 V W68
2022-10-25 03:59:44 C 23 04 54.577 -14 32 04.70 V 703
2022-10-25 04:07:19 C 23 04 53.098 -14 32 07.51 V 703
2022-10-25 04:14:55 C 23 04 51.614 -14 32 11.04 V 703
2022-10-25 04:22:30 C 23 04 50.106 -14 32 14.17 V 703
2022-10-26 03:00:35 C 23 00 28.884 -14 41 16.55 V W68
2022-10-26 03:31:15 C 23 00 22.850 -14 41 28.72 V W68
2022-10-26 03:36:31 C 23 00 21.799 -14 41 30.62 V W68
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)