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
2002-10-16 13:14:00 C 01 22 09.45 -03 13 22.3 379
2002-10-16 20:01:58 C 01 20 46.00 -03 20 25.7 c 468
2002-10-16 20:06:58 C 01 20 44.92 -03 20 31.0 c 468
2002-10-16 20:11:59 C 01 20 43.84 -03 20 36.0 c 468
2002-10-16 20:16:59 C 01 20 42.75 -03 20 41.2 c 468
2002-10-16 20:21:59 C 01 20 41.65 -03 20 46.6 c 468
2002-10-16 23:22:06 C 01 20 02.67 -03 24 01.1 c J93
2002-10-16 23:24:46 C 01 20 02.01 -03 24 02.8 c J93
2002-10-17 00:29:53 C 01 19 47.74 -03 25 12.1 c J93
2002-10-17 00:35:09 C 01 19 46.64 -03 25 17.3 c J93
2002-10-17 00:37:11 C 01 19 46.14 -03 25 19.1 c J93
2002-10-17 08:46:03 C 01 17 59.30 -03 33 59.2 d 718
2002-10-17 08:57:01 C 01 17 56.79 -03 34 10.7 d 718
2002-10-17 09:18:24 C 01 17 51.90 -03 34 33.9 d 718
2002-10-17 12:02:50 C 01 17 17.79 -03 37 30.2 355
2002-10-17 12:06:03 C 01 17 17.07 -03 37 35.0 355
2002-10-17 12:22:59 C 01 17 13.14 -03 37 53.4 355
2002-10-17 22:03:19 C 01 14 59.39 -03 48 48.9 d 170
2002-10-17 22:05:38 C 01 14 58.87 -03 48 51.1 d 170
2002-10-17 22:08:07 C 01 14 58.29 -03 48 54.1 d 170
2002-10-17 22:11:15 C 01 14 57.47 -03 48 57.3 d 170
2002-10-17 22:12:57 C 01 14 57.02 -03 48 58.9 d 170
2002-10-17 22:17:13 C 01 14 56.07 -03 49 04.4 d 170
2002-10-17 22:20:01 C 01 14 55.33 -03 49 07.8 d 170
2002-10-18 03:00:30 C 01 13 49.56 -03 54 28.4 c 846
2002-10-18 03:05:30 C 01 13 48.31 -03 54 34.5 c 846
2002-10-18 21:57:28 C 01 09 03.32 -04 17 21.2 d 560
2002-10-18 21:58:39 C 01 09 03.00 -04 17 22.8 d 560
2002-10-18 21:59:53 C 01 09 02.66 -04 17 24.3 d 560
2002-10-18 22:01:05 C 01 09 02.35 -04 17 25.9 d 560
2002-10-19 19:47:19 C 01 03 03.11 -04 45 41.5 c 204
2002-10-19 19:48:43 C 01 03 02.67 -04 45 43.1 c 204
2002-10-19 19:49:11 C 01 03 02.52 -04 45 43.6 c 204
2002-10-19 19:49:38 C 01 03 02.39 -04 45 44.3 c 204
2002-10-19 19:50:05 C 01 03 02.27 -04 45 45.2 c 204
2002-10-19 19:50:33 C 01 03 02.15 -04 45 45.6 c 204
2002-10-19 19:51:00 C 01 03 01.98 -04 45 46.3 c 204
2002-10-19 19:51:27 C 01 03 01.87 -04 45 47.1 c 204
2002-10-19 19:51:55 C 01 03 01.73 -04 45 47.6 c 204
2002-10-19 19:52:22 C 01 03 01.59 -04 45 48.2 c 204
2002-10-19 19:52:49 C 01 03 01.44 -04 45 48.8 c 204
2002-10-19 19:58:23 C 01 02 59.79 -04 45 56.1 c 204
2002-10-19 19:58:48 C 01 02 59.67 -04 45 56.6 c 204
2002-10-19 19:59:18 C 01 02 59.53 -04 45 57.7 c 204
2002-10-19 19:59:43 C 01 02 59.40 -04 45 57.7 c 204
2002-10-19 20:00:12 C 01 02 59.25 -04 45 58.6 c 204
2002-10-19 20:00:40 C 01 02 59.12 -04 45 59.2 c 204
2002-10-19 20:01:05 C 01 02 58.96 -04 46 00.1 c 204
2002-10-19 20:01:34 C 01 02 58.82 -04 46 00.3 c 204
2002-10-19 20:01:59 C 01 02 58.71 -04 46 01.3 c 204
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)