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
2020-09-19 12:11:24 C 09 16 16.84 +19 15 50.0 U I41
2020-09-19 12:18:06 C 09 16 18.93 +19 15 42.3 U I41
2020-09-19 12:24:51 C 09 16 21.03 +19 15 34.8 U I41
2020-09-19 12:31:34 C 09 16 23.11 +19 15 27.1 U I41
2020-09-19 12:38:18 C 09 16 25.18 +19 15 19.6 U I41
2020-09-23 12:11:44 C 09 45 38.22 +17 17 37.8 U I41
2020-09-23 12:25:23 C 09 45 42.33 +17 17 19.9 U I41
2020-09-23 12:32:11 C 09 45 44.37 +17 17 10.8 U I41
2020-09-23 12:39:02 C 09 45 46.42 +17 17 01.6 U I41
2021-06-13 13:32:10 C 21 10 20.766 -29 18 33.71 U F51
2021-06-13 13:48:06 C 21 10 20.217 -29 18 38.96 U F51
2021-06-13 14:03:19 C 21 10 19.691 -29 18 44.07 U F51
2021-06-13 14:18:34 C 21 10 19.159 -29 18 49.03 U F51
2021-06-20 13:33:40 C 21 03 52.368 -30 15 40.39 U F51
2021-06-20 13:44:14 C 21 03 51.884 -30 15 44.14 U F51
2021-06-20 13:54:48 C 21 03 51.392 -30 15 47.69 U F51
2021-06-20 14:05:22 C 21 03 50.918 -30 15 51.51 U F51
2021-08-04 08:14:10 C 19 54 10.114 -34 42 01.14 U F51
2021-08-04 08:28:14 C 19 54 09.180 -34 42 01.83 U F51
2021-08-04 08:42:19 C 19 54 08.238 -34 42 02.58 U F51
2021-08-04 08:56:25 C 19 54 07.279 -34 42 03.44 U F51
2021-08-09 06:57:17 C 19 46 43.591 -34 45 37.59 U F51
2021-08-09 07:09:43 C 19 46 42.803 -34 45 38.13 U F51
2021-08-09 07:22:08 C 19 46 42.064 -34 45 38.37 U F51
2021-08-09 07:34:23 C 19 46 41.301 -34 45 38.43 U F51
2022-08-27 13:22:18 C 01 21 40.527 -02 26 46.98 U F52
2022-08-27 13:38:06 C 01 21 40.372 -02 26 50.15 U F52
2022-08-27 13:53:51 C 01 21 40.221 -02 26 53.40 U F52
2022-08-27 14:09:48 C 01 21 40.068 -02 26 56.53 U F52
2022-08-31 12:29:50 C 01 20 37.347 -02 48 22.52 U F51
2022-08-31 12:47:52 C 01 20 37.031 -02 48 27.09 U F51
2022-08-31 13:06:06 C 01 20 36.709 -02 48 31.64 U F51
2022-08-31 13:24:22 C 01 20 36.385 -02 48 36.20 U F51
2022-09-02 23:42:04 C 01 19 34.510 -03 04 01.31 V M22
2022-09-02 23:44:40 C 01 19 34.421 -03 04 01.96 V M22
2022-09-02 23:52:27 C 01 19 34.286 -03 04 03.58 V M22
2022-09-03 00:12:02 C 01 19 33.816 -03 04 09.59 V M22
2022-09-16 10:57:07 C 01 07 19.452 -05 05 36.92 V 703
2022-09-16 11:02:49 C 01 07 19.725 -05 05 37.43 U F51
2022-09-16 11:08:34 C 01 07 18.772 -05 05 41.57 V 703
2022-09-16 11:16:15 C 01 07 18.311 -05 05 45.82 V 703
2022-09-16 11:19:14 C 01 07 18.721 -05 05 45.23 U F51
2022-09-16 11:23:55 C 01 07 17.850 -05 05 49.38 V 703
2022-09-16 11:35:45 C 01 07 17.712 -05 05 53.07 U F51
2022-09-16 11:52:20 C 01 07 16.688 -05 06 00.96 U F51
2022-09-16 12:34:11 C 01 07 14.105 -05 06 20.34 V T08
2022-09-16 12:38:50 C 01 07 13.829 -05 06 22.39 V T08
2022-09-16 12:46:59 C 01 07 13.308 -05 06 26.75 V T08
2022-09-16 13:37:55 C 01 07 10.212 -05 06 50.29 V T08
2022-09-17 10:44:39 C 01 05 54.647 -05 17 04.27 V G96
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)