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
2010-09-12 23:00:42 C 23 50 18.83 +11 56 51.4 u 160
2010-09-12 23:04:38 C 23 50 18.60 +11 56 51.2 u 160
2010-09-15 09:15:07 C 23 46 51.24 +11 50 52.4 r 703
2010-09-15 09:25:45 C 23 46 50.52 +11 50 52.4 r 703
2010-09-15 09:36:31 C 23 46 49.87 +11 50 50.0 r 703
2010-09-15 09:47:20 C 23 46 49.15 +11 50 49.1 r 703
2010-09-16 07:44:48 C 23 45 28.94 +11 48 08.3 r G96
2010-09-16 07:54:52 C 23 45 28.29 +11 48 07.0 r G96
2010-09-16 08:04:54 C 23 45 27.64 +11 48 05.7 r G96
2010-09-16 08:14:48 C 23 45 27.03 +11 48 04.4 r G96
2010-09-19 21:06:26 C 23 40 06.06 +11 35 26.7 u A13
2010-09-19 21:45:02 C 23 40 03.53 +11 35 20.3 u A13
2010-09-19 22:23:16 C 23 40 00.90 +11 35 14.3 u A13
2010-09-19 23:18:24 C 23 39 57.31 +11 35 04.4 u 160
2010-09-19 23:22:14 C 23 39 57.11 +11 35 03.2 u 160
2010-09-23 05:02:14 C 23 34 51.58 +11 20 29.8 o H21
2010-09-23 05:07:36 C 23 34 51.23 +11 20 28.7 o H21
2010-09-23 05:13:41 C 23 34 50.82 +11 20 27.8 o H21
2010-09-25 04:26:10 C 23 31 41.50 +11 10 16.5 o H21
2010-09-25 04:35:52 C 23 31 40.84 +11 10 14.2 o H21
2010-09-25 04:44:58 C 23 31 40.19 +11 10 12.0 o H21
2010-09-25 04:53:09 C 23 31 39.62 +11 10 10.8 o H21
2010-09-25 05:00:40 C 23 31 39.10 +11 10 09.2 o H21
2010-09-29 21:51:59 C 23 24 01.73 +10 41 59.4 u 160
2010-09-29 21:54:57 C 23 24 01.51 +10 41 58.9 u 160
2010-09-29 21:57:55 C 23 24 01.28 +10 41 58.5 u 160
2010-09-30 06:02:34 C 23 23 28.57 +10 39 48.6 r 703
2010-09-30 06:15:38 C 23 23 27.70 +10 39 45.5 r 703
2010-09-30 06:28:44 C 23 23 26.73 +10 39 40.9 r 703
2010-09-30 06:41:54 C 23 23 25.76 +10 39 37.6 r 703
2010-10-02 22:36:27 C 23 19 08.00 +10 21 22.8 u 160
2010-10-02 22:37:51 C 23 19 07.92 +10 21 22.5 u 160
2010-10-06 05:22:18 C 23 13 56.39 +09 57 16.5 u H15
2010-10-06 06:01:08 C 23 13 53.77 +09 57 04.1 u H15
2010-10-06 06:43:03 C 23 13 50.96 +09 56 50.7 u H15
2010-10-06 07:22:16 C 23 13 48.31 +09 56 38.6 u H15
2010-10-08 04:16:06 C 23 10 55.92 +09 42 12.7 r 703
2010-10-08 04:25:57 C 23 10 55.23 +09 42 09.6 r 703
2010-10-08 04:35:49 C 23 10 54.58 +09 42 07.1 r 703
2010-10-08 04:45:45 C 23 10 53.94 +09 42 03.9 r 703
2010-10-09 22:12:35 C 23 08 18.25 +09 28 22.1 r 130
2010-10-09 22:17:04 C 23 08 17.97 +09 28 20.1 r 130
2010-10-09 22:28:29 C 23 08 17.24 +09 28 17.0 r 130
2010-10-09 22:37:36 C 23 08 16.65 +09 28 13.5 r 130
2010-10-13 05:02:32 C 23 03 35.35 +09 01 48.9 r 703
2010-10-13 05:12:33 C 23 03 34.74 +09 01 46.6 r 703
2010-10-13 05:22:26 C 23 03 34.16 +09 01 42.7 r 703
2010-10-13 05:32:21 C 23 03 33.55 +09 01 39.2 r 703
2010-10-29 02:39:18 C 22 46 22.04 +06 56 40.0 r 703
2010-10-29 02:50:01 C 22 46 21.64 +06 56 36.8 r 703
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)