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
2022-11-13 06:30:58 C 21 37 41.021 -15 37 28.38 V T05
2022-11-15 18:42:40 C 21 26 32.345 -15 28 26.62 V M22
2022-11-15 18:57:30 C 21 26 29.561 -15 28 24.17 V M22
2022-11-15 19:09:13 C 21 26 27.343 -15 28 21.86 V M22
2022-11-17 05:27:34 C 21 20 05.875 -15 22 29.89 V T05
2022-11-17 05:32:07 C 21 20 05.042 -15 22 28.70 V T05
2022-11-17 05:53:50 C 21 20 00.869 -15 22 22.30 V T05
2022-11-17 06:01:38 C 21 19 59.321 -15 22 22.94 V T05
2022-11-19 01:54:52 C 21 11 48.592 -15 13 13.12 V 703
2022-11-19 02:48:16 C 21 11 38.335 -15 13 00.37 V 703
2022-11-19 02:55:50 C 21 11 36.877 -15 12 58.64 V 703
2022-11-19 03:03:24 C 21 11 35.401 -15 12 57.64 V 703
2022-11-22 01:27:02 C 20 58 16.252 -14 55 39.14 V 703
2022-11-22 01:35:17 C 20 58 14.635 -14 55 37.06 V 703
2022-11-22 01:43:32 C 20 58 12.958 -14 55 35.04 V 703
2022-11-22 01:51:47 C 20 58 11.381 -14 55 32.02 V 703
2022-11-25 04:36:42 C 20 43 35.378 -14 34 29.60 V T05
2022-11-25 04:41:16 C 20 43 34.483 -14 34 28.24 V T05
2022-11-25 04:55:37 C 20 43 31.512 -14 34 23.66 V T05
2022-11-25 05:03:27 C 20 43 29.887 -14 34 21.36 V T05
2023-06-10 13:01:05 C 20 01 37.391 -34 54 19.76 X F52
2023-06-10 13:15:00 C 20 01 36.300 -34 54 25.72 X F52
2023-06-10 13:29:01 C 20 01 35.174 -34 54 31.49 X F52
2023-06-16 11:06:13 C 19 49 57.546 -35 50 32.88 X F51
2023-06-16 11:08:04 C 19 49 57.371 -35 50 33.39 X F51
2023-06-16 11:22:52 C 19 49 56.054 -35 50 38.92 X F51
2023-06-16 11:44:22 C 19 49 54.119 -35 50 47.03 X F51
2023-06-16 11:46:12 C 19 49 53.964 -35 50 47.78 X F51
2023-06-16 12:03:30 C 19 49 52.403 -35 50 54.22 X F51
2023-06-16 12:05:21 C 19 49 52.243 -35 50 54.82 X F51
2023-06-21 10:34:21 C 19 39 08.887 -36 31 19.51 X F51
2023-06-21 10:47:19 C 19 39 07.644 -36 31 23.47 X F51
2023-06-21 11:00:21 C 19 39 06.395 -36 31 27.67 X F51
2024-08-11 12:36:48 C 23 32 57.864 -15 55 01.89 X F52
2024-08-11 12:51:58 C 23 32 57.198 -15 55 07.72 X F52
2024-08-11 13:07:08 C 23 32 56.540 -15 55 13.65 X F52
2024-08-11 13:22:20 C 23 32 55.870 -15 55 19.53 X F52
2024-08-27 11:04:38 C 23 12 28.224 -18 33 29.38 X F52
2024-08-27 11:36:54 C 23 12 26.084 -18 33 43.23 X F52
2024-08-27 11:53:03 C 23 12 25.040 -18 33 49.66 X F52
2024-08-31 10:55:05 C 23 06 06.302 -19 13 29.60 X F52
2024-08-31 11:09:21 C 23 06 05.310 -19 13 35.43 X F52
2024-08-31 11:23:37 C 23 06 04.299 -19 13 41.40 X F52
2024-08-31 11:37:52 C 23 06 03.305 -19 13 47.13 X F52
2024-09-10 08:37:13 C 22 49 01.900 -20 44 09.28 X F51
2024-09-10 08:53:13 C 22 49 00.685 -20 44 14.79 X F51
2024-09-10 09:09:15 C 22 48 59.471 -20 44 20.38 X F51
2024-09-10 09:25:17 C 22 48 58.254 -20 44 25.90 X F51
2024-09-23 08:21:27 C 22 26 19.500 -22 08 55.82 X F51
2024-09-23 08:38:20 C 22 26 18.295 -22 08 59.13 X 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)