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
2002-08-25 10:41:06 C 01 58 59.08 +02 22 56.3 c 644
2002-08-25 10:55:48 C 01 58 59.52 +02 22 56.3 c 644
2002-08-25 11:10:52 C 01 58 59.84 +02 22 56.7 c 644
2002-09-14 14:43:23 C 02 07 41.21 +02 04 11.9 c 608
2002-09-14 14:58:39 C 02 07 41.21 +02 04 10.0 c 608
2002-09-17 14:36:38 C 02 07 44.38 +01 54 12.3 c 608
2002-09-17 14:51:48 C 02 07 44.29 +01 54 09.9 c 608
2002-09-17 15:07:28 C 02 07 44.20 +01 54 07.5 c 608
2002-09-18 07:35:34 C 02 07 42.17 +01 51 27.3 c 699
2002-09-18 08:05:52 C 02 07 41.91 +01 51 23.5 c 699
2002-09-18 08:36:13 C 02 07 41.74 +01 51 17.6 c 699
2002-09-18 09:06:35 C 02 07 41.51 +01 51 13.2 c 699
2002-09-30 08:11:13 C 02 01 47.43 +00 40 55.6 17.1 c 704
2002-09-30 08:55:44 C 02 01 45.34 +00 40 40.3 16.9 c 704
2002-09-30 09:16:44 C 02 01 44.33 +00 40 33.1 17.7 c 704
2002-09-30 10:47:16 C 02 01 41.14 +00 40 05.7 c 608
2002-09-30 11:02:19 C 02 01 40.42 +00 40 00.7 c 608
2002-09-30 11:17:18 C 02 01 39.74 +00 39 56.0 c 608
2002-09-30 22:15:54 C 02 01 11.47 +00 35 55.0 c 246
2002-09-30 22:17:05 C 02 01 11.40 +00 35 54.4 c 246
2002-09-30 22:18:27 C 02 01 11.34 +00 35 54.1 c 246
2002-09-30 22:19:51 C 02 01 11.28 +00 35 53.6 c 246
2002-09-30 22:21:00 C 02 01 11.23 +00 35 53.1 c 246
2002-09-30 22:22:46 C 02 01 11.14 +00 35 52.5 c 246
2002-09-30 22:28:28 C 02 01 11.21 +00 35 52.8 d 170
2002-09-30 22:31:56 C 02 01 11.07 +00 35 52.5 d 170
2002-09-30 22:36:14 C 02 01 10.84 +00 35 49.9 d 170
2002-09-30 22:37:36 C 02 01 10.74 +00 35 49.2 d 170
2002-10-01 00:46:30 C 02 01 04.13 +00 35 01.1 d 557
2002-10-01 00:58:37 C 02 01 03.53 +00 34 56.6 d 557
2002-10-01 01:23:43 C 02 01 02.30 +00 34 47.6 d 557
2002-10-01 09:33:24 C 02 00 39.74 +00 31 54.5 16.7 c 704
2002-10-01 09:38:36 C 02 00 39.50 +00 31 52.6 16.9 c 704
2002-10-01 09:53:33 C 02 00 38.70 +00 31 47.3 16.8 c 704
2002-10-01 09:54:51 C 02 00 38.63 +00 31 46.6 17.0 c 704
2002-10-01 10:15:17 C 02 00 37.60 +00 31 39.2 17.3 c 704
2002-10-01 10:16:24 C 02 00 37.51 +00 31 38.8 17.3 c 704
2002-10-01 10:45:21 C 02 00 36.04 +00 31 28.2 17.5 c 704
2002-10-01 11:00:23 C 02 00 35.26 +00 31 22.8 17.7 c 704
2002-10-01 11:07:32 C 02 00 34.90 +00 31 20.1 17.7 c 704
2002-10-01 11:20:20 C 02 00 34.21 +00 31 15.4 17.3 c 704
2002-10-01 21:01:55 C 02 00 08.09 +00 27 35.2 c 108
2002-10-01 21:07:37 C 02 00 07.84 +00 27 34.1 c 108
2002-10-01 21:15:18 C 02 00 07.39 +00 27 29.8 c 108
2002-10-01 21:20:19 C 02 00 07.18 +00 27 28.9 c 108
2002-10-01 21:34:43 C 02 00 06.31 +00 27 21.8 m 611
2002-10-01 21:49:25 C 02 00 05.62 +00 27 16.3 m 611
2002-10-01 21:50:06 C 02 00 05.53 +00 27 17.3 c 159
2002-10-01 21:56:43 C 02 00 05.21 +00 27 14.3 c 587
2002-10-01 21:56:59 C 02 00 05.19 +00 27 14.7 c 159
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)