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
2002-10-29 20:36:46 C 22 41 49.16 -13 23 02.0 15.1 i 057
2002-10-29 20:43:09 C 22 41 42.37 -13 23 19.1 15.2 i 057
2002-10-29 20:47:56 C 22 41 37.34 -13 23 32.1 15.1 i 057
2002-10-29 20:50:41 C 22 41 34.38 -13 23 39.6 15.4 i 057
2002-10-29 20:53:05 C 22 41 32.02 -13 23 46.6 15.5 i 057
2002-10-29 20:55:01 C 22 41 29.91 -13 23 51.0 15.4 i 057
2002-10-29 21:18:59 C 22 41 05.56 -13 24 52.8 d 176
2002-10-29 21:20:39 C 22 41 03.78 -13 24 57.2 d 176
2002-10-29 21:22:58 C 22 41 01.31 -13 25 03.4 d 176
2002-10-29 21:24:38 C 22 40 59.55 -13 25 07.8 d 176
2002-10-29 21:26:58 C 22 40 57.06 -13 25 14.0 d 176
2002-10-30 12:10:41 C 22 25 04.56 -14 04 26.2 379
2002-10-30 12:13:01 C 22 25 01.96 -14 04 32.3 379
2002-10-30 12:13:47 C 22 25 01.04 -14 04 34.3 379
2002-10-30 12:16:58 C 22 24 57.46 -14 04 42.5 379
2002-10-30 12:18:32 C 22 24 55.69 -14 04 46.5 379
2002-10-30 18:20:06 C 22 18 12.08 -14 20 29.0 c 185
2002-10-30 18:25:18 C 22 18 06.07 -14 20 42.6 c 185
2002-10-30 18:26:41 C 22 18 04.39 -14 20 45.8 c 185
2002-10-30 18:27:33 C 22 18 03.38 -14 20 48.3 c 185
2002-10-30 18:28:26 C 22 18 02.43 -14 20 50.1 c 185
2002-10-30 18:31:18 C 22 17 59.15 -14 20 57.8 c 185
2002-10-30 19:49:11 C 22 16 29.86 -14 24 08.2 e 938
2002-10-30 19:50:36 C 22 16 28.28 -14 24 11.9 e 938
2002-10-30 19:51:55 C 22 16 26.69 -14 24 14.9 e 938
2002-10-30 19:53:17 C 22 16 25.10 -14 24 18.8 e 938
2002-10-30 19:54:42 C 22 16 23.44 -14 24 22.7 e 938
2002-10-30 19:56:02 C 22 16 21.91 -14 24 25.1 e 938
2002-10-30 19:57:26 C 22 16 20.25 -14 24 29.1 e 938
2002-10-30 19:58:47 C 22 16 18.68 -14 24 33.0 e 938
2002-10-30 20:00:08 C 22 16 17.06 -14 24 35.5 e 938
2002-10-30 20:01:27 C 22 16 15.56 -14 24 39.6 e 938
2002-10-31 03:51:08 C 22 07 07.77 -14 43 47.1 m 333
2002-10-31 03:54:25 C 22 07 03.81 -14 43 55.0 m 333
2002-10-31 03:56:07 C 22 07 01.82 -14 43 58.3 m 333
2002-10-31 03:57:43 C 22 06 59.86 -14 44 02.1 m 333
2002-10-31 20:02:46 C 21 47 33.42 -15 20 35.5 941
2002-10-31 20:03:27 C 21 47 32.57 -15 20 36.8 941
2002-10-31 20:04:07 C 21 47 31.78 -15 20 38.3 941
2002-10-31 20:04:47 C 21 47 30.91 -15 20 39.5 941
2002-10-31 20:05:28 C 21 47 30.05 -15 20 41.0 941
2002-10-31 21:20:01 C 21 45 56.01 -15 23 16.4 d J87
2002-10-31 21:21:05 C 21 45 54.66 -15 23 18.0 d J87
2002-10-31 21:22:08 C 21 45 53.33 -15 23 20.4 d J87
2002-10-31 21:26:28 C 21 45 47.97 -15 23 26.9 939
2002-10-31 21:30:28 C 21 45 42.86 -15 23 35.5 939
2002-10-31 21:34:25 C 21 45 37.79 -15 23 44.0 939
2002-11-01 09:25:01 C 21 30 40.25 -15 46 07.8 c 608
2002-11-01 09:40:20 C 21 30 20.49 -15 46 33.9 c 608
2002-11-01 09:55:50 C 21 30 00.57 -15 46 59.4 c 608
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)