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
2025-05-28 06:47:12 C 13 05 37.574 -36 49 37.72 X F51
2025-05-28 07:04:21 C 13 05 43.402 -36 49 22.83 X F51
2025-05-28 07:20:32 C 13 05 48.906 -36 49 08.48 X F51
2025-05-28 20:45:42 C 13 10 24.086 -36 36 49.90 V M22
2025-05-28 20:47:44 C 13 10 24.732 -36 36 48.13 V M22
2025-05-28 20:52:21 C 13 10 26.194 -36 36 43.99 V M22
2025-05-28 20:59:45 C 13 10 28.550 -36 36 37.22 V M22
2025-05-28 21:14:20 C 13 10 33.173 -36 36 24.01 V M22
2025-05-30 06:41:27 C 13 20 38.830 -36 08 06.76 V W68
2025-05-30 06:48:25 C 13 20 40.762 -36 08 00.64 V W68
2025-05-30 06:55:23 C 13 20 42.677 -36 07 54.23 V W68
2025-05-30 07:09:26 C 13 20 46.541 -36 07 41.56 V W68
2025-05-30 20:34:28 C 13 24 24.614 -35 57 12.78 V M22
2025-05-30 20:39:09 C 13 24 25.769 -35 57 08.89 V M22
2025-05-30 21:05:04 C 13 24 32.189 -35 56 47.65 V M22
2025-05-31 09:52:01 B 13 27 46.92 -35 46 50.5 q Q73
2025-05-31 09:57:11 B 13 27 48.12 -35 46 46.7 q Q73
2025-05-31 10:02:21 B 13 27 49.32 -35 46 42.7 q Q73
2025-05-31 20:24:31 C 13 30 16.440 -35 38 50.42 V M22
2025-05-31 20:29:18 C 13 30 17.508 -35 38 46.68 V M22
2025-05-31 20:38:23 C 13 30 19.507 -35 38 39.77 V M22
2025-05-31 20:52:34 C 13 30 22.642 -35 38 28.68 V M22
2025-06-01 09:56:56 B 13 33 21.43 -35 28 49.9 q Q73
2025-06-01 10:02:06 B 13 33 22.50 -35 28 46.3 q Q73
2025-06-01 10:07:16 B 13 33 23.61 -35 28 42.6 q Q73
2025-06-01 20:25:07 C 13 35 35.282 -35 21 19.19 V M22
2025-06-01 20:29:41 C 13 35 36.185 -35 21 15.98 V M22
2025-06-01 20:39:49 C 13 35 38.210 -35 21 08.50 V M22
2025-06-01 20:41:07 C 13 35 38.472 -35 21 07.52 V M22
2025-06-01 20:45:57 C 13 35 39.432 -35 21 03.96 V M22
2025-06-01 20:54:14 C 13 35 41.083 -35 20 57.91 V M22
2025-06-01 20:54:54 C 13 35 41.218 -35 20 57.44 V M22
2025-06-01 21:09:19 C 13 35 44.098 -35 20 46.68 V M22
2025-06-03 01:46:00 B 13 41 24.23 -35 01 26.9 X X76
2025-06-03 01:51:35 B 13 41 25.11 -35 01 23.6 X X76
2025-06-03 01:56:45 B 13 41 26.08 -35 01 19.4 X X76
2025-06-04 02:44:28 C 13 45 52.781 -34 45 15.66 V W68
2025-06-04 02:48:29 C 13 45 53.417 -34 45 13.18 V W68
2025-06-04 02:55:50 C 13 45 54.614 -34 45 08.42 V W68
2025-06-04 04:04:18 C 13 46 05.688 -34 44 23.86 V W68
2025-06-04 20:35:28 C 13 48 50.460 -34 34 24.60 V M22
2025-06-04 20:40:01 C 13 48 51.146 -34 34 21.72 V M22
2025-06-04 20:47:54 C 13 48 52.342 -34 34 17.00 V M22
2025-06-04 21:03:45 C 13 48 54.758 -34 34 07.10 V M22
2025-06-05 19:55:15 C 13 52 27.658 -34 20 57.48 V M22
2025-06-05 19:59:56 C 13 52 28.315 -34 20 54.85 V M22
2025-06-05 20:00:35 C 13 52 28.402 -34 20 54.64 V M22
2025-06-05 20:12:03 C 13 52 30.022 -34 20 48.05 V M22
2025-06-05 20:14:39 C 13 52 30.386 -34 20 46.54 V M22
2025-06-05 20:26:07 C 13 52 31.982 -34 20 39.98 V M22
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)