153591 (2001 SN263)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4799501702 ± 1.35e-09
Semi-major axis (a)1.9877627834 AU ± 8.82e-11
Inclination (i)6.69249029° ± 3.51e-07
Long. of Asc. Node (Ω)325.70895525° ± 1.05e-06
Arg. of Perihelion (ω)173.05863055° ± 1.30e-06
Mean Anomaly (M)124.08081465° ± 3.30e-07
Mean Motion (n)0.3516943922°/day ± 2.34e-11
Perihelion dist (q)1.03373570 AU ± 2.68e-09
Aphelion dist (Q)2.94178987 AU ± 2.69e-09
Orbital Period2.80250782 yr ± 1.87e-10
Physical Parameters
H (abs. magnitude)17.11
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.171″
Uncertainty0
Orbit TypeAmor
MOID0.047787 AU
Observations Used3293
Radar Obs Used3
Oppositions21
Arc Total1990-2025
First Observation Used1990-09-25
Last Observation Used2025-06-05
Observations (4048)
Date Type RA Dec Mag Band Observatory
1990-09-25 07:16:00 00 32 08.80 +12 15 29.2 d 261
1990-09-25 08:05:59 00 32 06.04 +12 15 20.4 d 261
1993-11-20 09:29:59 03 21 31.75 +40 55 39.9 c 675
1993-11-20 10:14:30 03 21 27.96 +40 55 51.6 c 675
1993-12-10 03:02:00 02 42 42.00 +41 26 25.6 c 675
1993-12-10 03:48:44 02 42 37.59 +41 26 18.9 c 675
2001-09-20 05:57:39 C 23 13 03.75 +00 20 20.6 19.3 c 704
2001-09-20 06:18:02 C 23 13 02.66 +00 20 14.9 19.8 c 704
2001-09-20 06:58:46 C 23 13 00.48 +00 20 04.7 19.8 c 704
2001-09-20 07:19:08 C 23 12 59.36 +00 20 00.1 20.1 c 704
2001-09-21 05:53:40 C 23 11 48.79 +00 14 19.5 19.9 c 704
2001-09-21 06:14:07 C 23 11 47.72 +00 14 14.6 20.0 c 704
2001-09-21 06:34:29 C 23 11 46.63 +00 14 10.2 20.2 c 704
2001-09-22 06:01:52 C 23 10 33.59 +00 08 15.0 19.4 c 704
2001-09-22 06:42:40 C 23 10 31.37 +00 08 08.2 20.4 c 704
2001-09-22 07:03:05 C 23 10 30.30 +00 07 59.3 19.7 c 704
2001-09-22 07:23:30 C 23 10 29.21 +00 07 55.3 20.0 c 704
2001-09-22 22:58:24 C 23 09 40.98 +00 03 57.8 c 046
2001-09-22 23:01:11 C 23 09 40.91 +00 03 57.1 c 046
2001-09-22 23:03:34 C 23 09 40.73 +00 03 55.6 c 046
2001-09-22 23:05:59 C 23 09 40.62 +00 03 54.7 c 046
2001-09-23 05:53:27 C 23 09 19.63 +00 02 13.3 19.0 c 704
2001-09-23 06:13:52 C 23 09 18.56 +00 02 09.3 20.1 c 704
2001-09-23 06:34:15 C 23 09 17.46 +00 02 03.1 19.8 c 704
2001-09-23 06:54:39 C 23 09 16.41 +00 01 57.1 20.0 c 704
2001-09-23 07:15:02 C 23 09 15.35 +00 01 53.7 19.4 c 704
2001-09-23 08:44:53 C 23 09 10.79 +00 01 28.3 c 658
2001-09-23 08:51:39 C 23 09 10.35 +00 01 27.2 c 658
2001-09-23 08:58:11 C 23 09 10.01 +00 01 25.4 c 658
2001-09-25 05:35:00 C 23 06 53.22 -00 09 43.1 d 829
2001-09-25 06:03:59 C 23 06 51.74 -00 09 50.3 d 829
2001-09-26 06:35:10 C 23 05 37.70 -00 16 06.3 c 711
2001-09-26 06:54:19 C 23 05 36.69 -00 16 12.5 c 711
2001-09-26 07:13:08 C 23 05 35.76 -00 16 17.4 c 711
2001-10-12 03:10:42 C 22 48 48.67 -01 44 41.6 715
2001-10-12 03:21:52 C 22 48 48.14 -01 44 42.3 715
2001-10-12 21:44:48 C 22 48 08.34 -01 48 23.8 c 046
2001-10-12 21:47:57 C 22 48 08.27 -01 48 24.6 c 046
2001-10-12 21:50:21 C 22 48 08.15 -01 48 26.1 c 046
2001-10-12 21:57:35 C 22 48 07.77 -01 48 26.9 c 046
2001-11-15 03:06:37 C 22 37 10.18 -03 01 17.2 d 291
2001-11-15 03:43:26 C 22 37 10.32 -03 01 16.0 d 291
2001-12-20 00:49:09 C 23 00 03.14 -01 02 09.3 c 649
2001-12-20 01:05:06 C 23 00 03.78 -01 02 04.7 c 649
2001-12-20 01:39:18 C 23 00 05.30 -01 01 56.6 c 649
2002-01-22 02:31:55 C 23 44 02.75 +03 23 55.4 d 291
2002-01-22 02:40:27 C 23 44 03.31 +03 23 58.0 d 291
2002-01-22 02:49:04 C 23 44 03.81 +03 24 02.9 d 291
2003-07-18 16:55:56 C 20 14 30.97 -24 49 32.2 e 413
2003-07-18 17:06:55 C 20 14 30.34 -24 49 33.4 e 413
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2008-02-12 00:46:00 74376743.286 50 us 2380 -1 -1
2022-02-22 05:50:00 105008239.98 10 us 8560 -14 -14
2022-02-23 01:00:00 104031851.77 10 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)