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
2022-10-01 18:11:41 C 00 35 33.545 -08 39 02.56 V P07
2022-10-02 11:38:22 C 00 33 28.946 -08 50 59.46 V T08
2022-10-02 11:52:35 C 00 33 27.158 -08 51 09.29 V T08
2022-10-02 12:33:14 C 00 33 22.075 -08 51 36.36 V T08
2022-10-02 12:47:05 C 00 33 20.359 -08 51 46.04 V T08
2022-10-02 15:59:14 C 00 32 57.761 -08 53 44.88 V P07
2022-10-02 16:52:40 C 00 32 51.043 -08 54 20.92 V P07
2022-10-02 16:56:38 C 00 32 50.549 -08 54 23.58 V P07
2022-10-02 17:58:05 C 00 32 42.802 -08 55 05.30 V P07
2022-10-02 18:19:53 B 00 32 40.536 -08 55 36.81 W N86
2022-10-02 18:30:15 B 00 32 39.236 -08 55 44.07 W N86
2022-10-02 18:40:36 B 00 32 37.925 -08 55 50.92 W N86
2022-10-03 05:31:51 C 00 31 17.798 -09 02 54.85 V W68
2022-10-03 05:32:30 C 00 31 17.705 -09 02 54.96 V W68
2022-10-03 05:36:17 C 00 31 17.227 -09 02 57.98 V W68
2022-10-03 05:37:35 C 00 31 17.047 -09 02 58.78 V W68
2022-10-03 06:26:36 C 00 31 10.786 -09 03 31.97 V W68
2022-10-03 06:27:54 C 00 31 10.603 -09 03 32.83 V W68
2022-10-03 07:07:19 C 00 31 05.585 -09 03 59.47 V W68
2022-10-03 07:07:58 C 00 31 05.522 -09 03 59.80 V W68
2022-10-04 07:22:42 C 00 28 02.366 -09 20 54.42 V 703
2022-10-04 07:29:12 C 00 28 01.506 -09 20 58.34 V 703
2022-10-04 07:35:43 C 00 28 00.552 -09 21 02.74 V 703
2022-10-04 07:42:13 C 00 27 59.731 -09 21 07.56 V 703
2022-10-04 20:45:37 C 00 26 18.732 -09 30 09.79 X K74
2022-10-04 20:48:24 C 00 26 18.355 -09 30 11.92 X K74
2022-10-04 20:50:37 C 00 26 18.067 -09 30 13.75 X K74
2022-10-04 20:51:29 C 00 26 17.902 -09 29 53.05 V M22
2022-10-04 20:52:50 C 00 26 17.774 -09 30 15.37 X K74
2022-10-04 20:54:06 C 00 26 17.561 -09 29 54.42 V M22
2022-10-04 20:55:04 C 00 26 17.455 -09 30 17.06 X K74
2022-10-04 20:59:57 C 00 26 16.754 -09 29 58.81 V M22
2022-10-04 21:07:47 C 00 26 15.701 -09 30 04.00 V M22
2022-10-06 02:38:27 C 00 22 19.517 -09 50 30.16 V W68
2022-10-06 02:42:21 C 00 22 18.972 -09 50 32.93 V W68
2022-10-06 03:11:52 C 00 22 14.818 -09 50 53.23 V W68
2022-10-06 03:38:00 C 00 22 11.148 -09 51 11.84 V W68
2022-10-06 10:28:36 C 00 21 14.645 -09 56 11.65 V T08
2022-10-06 10:33:15 C 00 21 13.970 -09 56 14.71 V T08
2022-10-06 11:12:57 C 00 21 08.304 -09 56 42.54 V T08
2022-10-06 11:24:44 C 00 21 06.648 -09 56 50.17 V T08
2022-10-11 05:10:16 C 00 04 21.600 -11 15 28.12 V W68
2022-10-11 05:14:48 C 00 04 20.928 -11 15 31.46 V W68
2022-10-11 05:33:47 C 00 04 17.868 -11 15 44.35 V W68
2022-10-11 05:46:57 C 00 04 15.732 -11 15 53.53 V W68
2022-10-12 09:35:04 C 23 59 51.163 -11 35 08.45 V T05
2022-10-12 09:39:38 C 23 59 50.400 -11 35 11.65 V T05
2022-10-12 09:47:28 C 23 59 49.109 -11 35 16.91 V T05
2022-10-12 10:02:28 C 23 59 46.594 -11 35 27.02 V T05
2022-10-13 03:40:03 C 23 56 55.020 -11 47 03.84 V W68
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)