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
2022-09-17 10:52:45 C 01 05 54.136 -05 17 08.16 V G96
2022-09-17 11:00:51 C 01 05 53.614 -05 17 12.05 V G96
2022-09-17 11:08:56 C 01 05 53.099 -05 17 15.97 V G96
2022-09-18 06:49:05 C 01 04 39.947 -05 27 00.50 V 703
2022-09-18 06:56:59 C 01 04 39.421 -05 27 04.68 V 703
2022-09-18 07:12:45 C 01 04 38.341 -05 27 12.46 V 703
2022-09-19 17:32:01 C 01 02 20.791 -05 44 36.67 V P07
2022-09-19 18:30:03 C 01 02 16.596 -05 45 06.98 V P07
2022-09-19 19:30:56 C 01 02 12.187 -05 45 39.17 V P07
2022-09-19 20:35:28 C 01 02 07.490 -05 46 12.29 V P07
2022-09-20 10:55:12 C 01 01 07.318 -05 53 57.59 V T08
2022-09-20 10:57:52 C 01 01 07.157 -05 53 59.03 V T08
2022-09-20 11:03:11 C 01 01 06.737 -05 54 02.02 V T08
2022-09-20 11:24:14 C 01 01 05.150 -05 54 12.89 V T08
2022-09-20 16:19:59 C 01 00 43.980 -05 56 42.00 V P07
2022-09-20 17:33:53 C 01 00 38.340 -05 57 21.64 V P07
2022-09-20 18:26:31 C 01 00 34.294 -05 57 50.08 V P07
2022-09-20 18:50:31 B 01 00 32.772 -05 58 17.12 W N86
2022-09-20 18:51:35 B 01 00 32.730 -05 58 17.54 W N86
2022-09-20 19:00:58 B 01 00 32.026 -05 58 22.13 W N86
2022-09-20 19:02:04 B 01 00 31.931 -05 58 23.22 W N86
2022-09-20 19:11:28 B 01 00 31.269 -05 58 28.27 W N86
2022-09-20 19:12:33 B 01 00 31.167 -05 58 29.05 W N86
2022-09-20 20:33:40 C 01 00 24.590 -05 58 58.04 V P07
2022-09-21 03:48:42 C 00 59 53.429 -06 02 51.86 V W68
2022-09-21 03:52:45 C 00 59 53.122 -06 02 55.07 V W68
2022-09-21 04:02:31 C 00 59 52.363 -06 03 00.14 V W68
2022-09-21 04:16:40 C 00 59 51.276 -06 03 07.81 V W68
2022-09-21 16:35:34 C 00 58 55.303 -06 09 54.40 V P07
2022-09-21 17:42:00 C 00 58 49.987 -06 10 31.40 V P07
2022-09-21 19:38:39 C 00 58 40.613 -06 11 35.74 V P07
2022-09-21 20:54:24 C 00 58 34.589 -06 12 17.50 V P07
2022-09-22 10:32:04 C 00 57 31.447 -06 20 04.88 V T05
2022-09-22 10:34:40 C 00 57 31.222 -06 20 06.43 V T05
2022-09-22 10:39:14 C 00 57 30.828 -06 20 09.10 V T05
2022-09-22 11:05:20 C 00 57 28.682 -06 20 23.82 V T05
2022-09-23 10:12:27 C 00 55 36.060 -06 33 34.41 U F52
2022-09-23 10:28:11 C 00 55 34.690 -06 33 43.48 U F52
2022-09-23 10:44:01 C 00 55 33.311 -06 33 52.68 U F52
2022-09-24 19:33:09 B 00 52 43.747 -06 53 12.74 W N86
2022-09-24 19:43:30 B 00 52 42.771 -06 53 18.38 W N86
2022-09-24 19:53:55 B 00 52 41.848 -06 53 25.33 W N86
2022-09-25 08:05:31 C 00 51 36.378 -07 00 41.15 V 703
2022-09-25 08:13:07 C 00 51 35.654 -07 00 45.72 V 703
2022-09-25 08:20:44 C 00 51 34.934 -07 00 50.18 V 703
2022-09-25 08:28:21 C 00 51 34.225 -07 00 55.04 V 703
2022-09-26 11:42:06 C 00 49 01.894 -07 17 29.04 V T05
2022-09-26 11:46:54 C 00 49 01.426 -07 17 32.17 V T05
2022-09-26 12:25:42 C 00 48 57.574 -07 17 55.90 V T05
2022-09-26 13:06:40 C 00 48 53.494 -07 18 20.99 V T05
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)