251346 (2007 SJ)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5332354919 ± 3.92e-09
Semi-major axis (a)2.0148109275 AU ± 7.47e-09
Inclination (i)8.18204835° ± 9.31e-07
Long. of Asc. Node (Ω)306.75711472° ± 6.21e-06
Arg. of Perihelion (ω)175.24975270° ± 7.18e-06
Mean Anomaly (M)48.92574859° ± 8.13e-06
Mean Motion (n)0.3446361497°/day ± 1.92e-09
Perihelion dist (q)0.94044223 AU ± 8.64e-09
Aphelion dist (Q)3.08917962 AU ± 1.39e-08
Orbital Period2.85990394 yr ± 1.59e-08
Physical Parameters
H (abs. magnitude)16.88
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.223″
Uncertainty0
Orbit TypeApollo
MOID0.041856 AU
Observations Used960
Radar Obs Used2
Gaia Obs Used13
Oppositions18
Arc Total1990-2024
First Observation Used1990-10-14
Last Observation Used2024-12-30
Observations (1037)
Date Type RA Dec Mag Band Observatory
2007-09-30 03:44:09 C 22 10 22.01 -01 45 15.1 o 291
2007-10-06 04:14:55 C 22 04 21.95 -02 18 50.0 r 448
2007-10-06 04:32:53 C 22 04 21.16 -02 18 54.0 r 448
2007-10-06 04:54:27 C 22 04 20.38 -02 18 59.2 r 448
2007-10-12 05:09:21 C 21 59 31.69 -02 48 48.4 r 448
2007-10-12 05:32:59 C 21 59 30.97 -02 48 51.8 r 448
2007-10-12 05:56:39 C 21 59 30.20 -02 48 55.9 r 448
2007-10-16 05:56:10 C 21 57 01.18 -03 06 09.6 r 448
2007-10-16 06:22:52 C 21 57 00.52 -03 06 13.5 r 448
2007-10-16 06:49:45 C 21 56 59.87 -03 06 18.5 r 448
2007-10-25 03:51:29 C 21 53 37.60 -03 35 43.2 r G96
2007-10-25 04:05:51 C 21 53 37.46 -03 35 45.0 r G96
2007-10-25 04:20:11 C 21 53 37.32 -03 35 46.2 r G96
2007-10-25 04:34:32 C 21 53 37.14 -03 35 48.3 r G96
2007-11-07 01:32:38 C 21 53 52.23 -03 54 57.6 c 711
2007-11-07 01:50:51 C 21 53 52.41 -03 54 58.5 c 711
2007-11-07 02:09:03 C 21 53 52.59 -03 54 58.1 c 711
2007-11-19 03:19:54 C 21 59 14.70 -03 46 25.8 o 689
2007-11-19 03:24:31 C 21 59 14.80 -03 46 25.3 o 689
2007-12-04 01:39:12 C 22 11 50.54 -03 00 47.5 r 448
2007-12-04 02:41:21 C 22 11 53.18 -03 00 36.1 r 448
2007-12-04 02:47:49 C 22 11 53.49 -03 00 34.2 o 291
2007-12-04 02:55:37 C 22 11 53.82 -03 00 32.8 o 291
2007-12-04 03:03:23 C 22 11 54.14 -03 00 31.5 o 291
2007-12-28 01:57:48 C 22 43 27.73 -00 29 48.2 o 291
2007-12-28 02:03:29 C 22 43 27.99 -00 29 45.5 o 291
2007-12-28 02:09:05 C 22 43 28.37 -00 29 43.8 o 291
2008-06-27 04:52:45 C 09 37 46.99 +08 38 41.6 r F85
2008-06-27 06:02:56 C 09 37 58.81 +08 37 28.8 r F85
2009-06-02 14:17:52 C 20 16 10.73 -23 52 13.0 o F65
2009-06-02 14:24:39 C 20 16 10.56 -23 52 13.3 o F65
2010-09-06 01:13:45 C 23 59 12.53 +12 04 58.4 u 160
2010-09-06 01:17:47 C 23 59 12.26 +12 04 58.6 u 160
2010-09-06 01:21:36 C 23 59 12.02 +12 04 57.9 u 160
2010-09-08 23:16:28 C 23 55 38.13 +12 03 08.6 v 204
2010-09-08 23:25:15 C 23 55 37.66 +12 03 08.3 v 204
2010-09-09 01:04:48 C 23 55 32.21 +12 03 03.8 v 204
2010-09-09 01:14:08 C 23 55 31.70 +12 03 03.4 v 204
2010-09-09 11:52:17 C 23 54 57.615 +12 02 37.21 L F51
2010-09-09 11:58:02 C 23 54 57.299 +12 02 36.88 L F51
2010-09-10 07:12:04 C 23 53 54.83 +12 01 34.1 19.3 c 704
2010-09-10 07:29:06 C 23 53 53.84 +12 01 33.8 19.5 c 704
2010-09-10 07:46:08 C 23 53 52.95 +12 01 32.6 19.8 c 704
2010-09-10 08:03:13 C 23 53 52.00 +12 01 31.7 19.7 c 704
2010-09-10 08:20:17 C 23 53 50.86 +12 01 30.9 19.6 c 704
2010-09-11 19:16:01 C 23 51 54.46 +11 59 06.7 o 151
2010-09-11 19:24:26 C 23 51 54.04 +11 59 06.1 o 151
2010-09-11 19:49:34 C 23 51 52.62 +11 59 05.3 o 151
2010-09-11 19:53:45 C 23 51 52.36 +11 59 05.4 o 151
2010-09-12 22:56:48 C 23 50 19.10 +11 56 51.8 u 160
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-01-18 20:50:00 50807219.81 3 us 8560 -14 -14
2014-01-19 16:00:00 49703126.01 2 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)