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
2022-09-26 15:29:33 C 00 48 40.639 -07 19 39.25 V P07
2022-09-26 16:37:08 C 00 48 33.852 -07 20 20.87 V P07
2022-09-26 17:36:12 C 00 48 27.953 -07 20 57.34 V P07
2022-09-26 19:46:24 C 00 48 14.868 -07 22 17.58 V P07
2022-09-27 00:56:39 C 00 47 44.942 -07 25 28.49 V M22
2022-09-27 01:06:33 C 00 47 43.946 -07 25 34.93 V M22
2022-09-27 01:35:30 C 00 47 40.994 -07 25 53.11 V M22
2022-09-27 01:40:03 C 00 47 40.541 -07 25 55.81 V M22
2022-09-27 09:49:06 C 00 46 53.130 -07 31 15.68 U F51
2022-09-27 10:04:36 C 00 46 51.522 -07 31 25.44 U F51
2022-09-27 10:20:21 C 00 46 49.896 -07 31 35.35 U F51
2022-09-27 14:58:17 C 00 46 22.474 -07 34 19.27 V P07
2022-09-27 16:14:57 C 00 46 14.477 -07 35 07.66 V P07
2022-09-27 17:14:35 C 00 46 08.244 -07 35 45.31 V P07
2022-09-27 17:49:43 C 00 46 04.579 -07 36 07.74 V P07
2022-09-27 18:10:17 C 00 46 02.405 -07 36 20.63 V P07
2022-09-27 18:13:24 C 00 46 02.078 -07 36 22.46 V P07
2022-09-28 06:33:14 C 00 44 47.371 -07 44 25.98 V G96
2022-09-28 06:40:40 C 00 44 46.594 -07 44 31.13 V G96
2022-09-28 06:45:02 C 00 44 46.136 -07 44 33.97 V 703
2022-09-28 06:48:06 C 00 44 45.798 -07 44 35.84 V G96
2022-09-28 06:52:36 C 00 44 45.319 -07 44 38.69 V 703
2022-09-28 06:55:32 C 00 44 45.010 -07 44 40.56 V G96
2022-09-28 07:00:10 C 00 44 44.498 -07 44 43.69 V 703
2022-09-28 07:07:45 C 00 44 43.699 -07 44 48.44 V 703
2022-09-28 09:46:26 C 00 44 27.434 -07 46 26.83 V T08
2022-09-28 09:49:05 C 00 44 27.149 -07 46 28.52 V T08
2022-09-28 09:55:51 C 00 44 26.426 -07 46 33.13 V T08
2022-09-28 10:03:14 C 00 44 25.625 -07 46 37.56 V T08
2022-09-28 10:03:58 C 00 44 25.550 -07 46 38.27 U F51
2022-09-28 10:23:18 C 00 44 23.467 -07 46 50.64 U F51
2022-09-28 10:42:34 C 00 44 21.390 -07 47 03.00 U F51
2022-09-28 11:01:54 C 00 44 19.301 -07 47 15.39 U F51
2022-09-29 03:38:57 C 00 42 34.877 -07 57 43.81 V W68
2022-09-29 03:42:51 C 00 42 34.459 -07 57 46.37 V W68
2022-09-29 03:50:41 C 00 42 33.600 -07 57 51.66 V W68
2022-09-29 04:22:39 C 00 42 30.074 -07 58 12.29 V W68
2022-09-29 15:17:20 C 00 41 19.814 -08 05 19.68 V P07
2022-09-29 16:22:19 C 00 41 12.425 -08 06 02.63 V P07
2022-09-29 16:25:43 C 00 41 12.058 -08 06 04.75 V P07
2022-09-29 17:17:16 C 00 41 06.216 -08 06 38.88 V P07
2022-09-29 18:22:46 C 00 40 58.790 -08 07 20.96 V P07
2022-09-29 19:30:51 C 00 40 51.118 -08 08 05.39 V P07
2022-09-30 21:51:06 C 00 37 55.546 -08 25 24.78 V M22
2022-09-30 21:55:39 C 00 37 55.022 -08 25 27.91 V M22
2022-09-30 21:59:34 C 00 37 54.559 -08 25 30.50 V M22
2022-09-30 22:07:22 C 00 37 53.638 -08 25 35.54 V M22
2022-10-01 16:13:03 C 00 35 47.954 -08 37 43.32 V P07
2022-10-01 17:06:33 C 00 35 41.436 -08 38 18.92 V P07
2022-10-01 17:10:15 C 00 35 40.999 -08 38 21.26 V P07
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)