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
2013-08-27 08:47:35 C 00 12 54.74 -11 25 21.9 u 807
2013-08-27 08:55:34 C 00 12 54.35 -11 25 25.6 u 807
2013-08-27 09:03:32 C 00 12 53.95 -11 25 29.0 u 807
2013-09-04 10:33:41 C 00 01 52.794 -12 55 54.39 L F51
2013-09-04 10:50:26 C 00 01 51.666 -12 56 02.61 L F51
2013-09-08 05:09:37 C 23 55 39.01 -13 40 56.5 V G45
2013-09-08 05:34:07 C 23 55 37.24 -13 41 08.7 V G45
2013-09-08 06:03:15 C 23 55 35.07 -13 41 23.7 V G45
2013-09-08 06:31:56 C 23 55 32.91 -13 41 38.6 V G45
2013-09-08 12:25:54 C 23 55 06.866 -13 44 34.74 L F51
2013-09-08 12:43:34 C 23 55 05.533 -13 44 43.63 L F51
2013-09-22 09:42:23 C 23 27 15.234 -16 27 21.78 L F51
2013-09-22 09:53:59 C 23 27 14.138 -16 27 26.93 L F51
2013-09-23 08:55:10 C 23 25 07.092 -16 37 39.53 L F51
2013-09-23 09:09:50 C 23 25 05.701 -16 37 45.99 L F51
2013-09-23 09:26:09 C 23 25 04.147 -16 37 53.22 L F51
2013-09-23 09:42:37 C 23 25 02.571 -16 38 00.53 L F51
2013-09-29 06:21:17 C 23 11 52.75 -17 34 48.3 q 703
2013-09-29 06:28:35 C 23 11 52.05 -17 34 51.0 q 703
2013-09-29 06:35:54 C 23 11 51.47 -17 34 53.1 q 703
2013-09-29 06:43:07 C 23 11 50.61 -17 34 55.7 q 703
2013-12-04 05:35:32 C 22 08 56.239 -14 13 51.12 L F51
2013-12-04 05:51:19 C 22 08 56.557 -14 13 43.35 L F51
2014-04-21 22:49:31 S 20 22 51.703 -27 48 03.67 L C51
2014-04-24 20:19:39 S 20 22 17.28 -28 24 40.3 L C51
2014-04-25 02:38:51 S 20 22 12.97 -28 28 04.0 L C51
2014-04-25 05:48:16 S 20 22 10.639 -28 29 46.07 L C51
2014-04-25 05:48:27 S 20 22 10.627 -28 29 45.64 L C51
2014-04-25 07:23:04 S 20 22 09.492 -28 30 37.58 L C51
2014-04-25 13:42:16 S 20 22 04.73 -28 34 02.1 L C51
2014-04-25 16:51:53 S 20 22 02.10 -28 35 46.6 L C51
2014-04-25 20:01:18 S 20 21 59.73 -28 37 27.6 L C51
2014-05-24 13:25:01 C 19 45 15.027 -35 39 00.30 L F51
2014-05-24 13:39:47 C 19 45 13.534 -35 39 09.27 L F51
2014-05-24 13:54:33 C 19 45 12.042 -35 39 18.24 L F51
2014-05-24 14:09:20 C 19 45 10.546 -35 39 27.15 L F51
2014-05-27 12:47:03 C 19 38 00.692 -36 21 01.88 L F51
2014-05-27 12:50:53 C 19 38 00.271 -36 21 03.97 L F51
2014-05-27 13:01:37 C 19 37 59.091 -36 21 10.29 L F51
2014-05-27 13:05:26 C 19 37 58.674 -36 21 12.44 L F51
2014-05-27 13:16:11 C 19 37 57.496 -36 21 18.66 L F51
2014-05-27 13:20:01 C 19 37 57.076 -36 21 20.84 L F51
2014-05-27 13:30:46 C 19 37 55.894 -36 21 27.06 L F51
2014-05-27 13:34:37 C 19 37 55.477 -36 21 29.23 L F51
2014-06-07 12:39:21 C 19 06 47.120 -38 27 26.01 L F51
2014-06-07 12:40:19 C 19 06 46.992 -38 27 26.39 L F51
2014-06-07 12:54:43 C 19 06 45.096 -38 27 31.54 L F51
2014-06-07 13:08:05 C 19 06 43.332 -38 27 36.44 L F51
2014-06-07 13:09:03 C 19 06 43.209 -38 27 36.76 L F51
2014-06-07 13:22:28 C 19 06 41.444 -38 27 41.50 L F51
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)