480817 (1998 SJ2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5021491900 ± 7.13e-08
Semi-major axis (a)2.3283702979 AU ± 1.15e-08
Inclination (i)10.39286544° ± 1.19e-05
Long. of Asc. Node (Ω)8.66213886° ± 2.69e-05
Arg. of Perihelion (ω)332.87221039° ± 3.69e-05
Mean Anomaly (M)237.72335772° ± 2.43e-05
Mean Motion (n)0.2774177215°/day ± 2.06e-09
Perihelion dist (q)1.15918104 AU ± 1.66e-07
Aphelion dist (Q)3.49755956 AU ± 1.67e-07
Orbital Period3.55285985 yr ± 2.64e-08
Physical Parameters
H (abs. magnitude)18.25
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.495″
Uncertainty0
Orbit TypeAmor
MOID0.167506 AU
Observations Used175
Oppositions18
Arc Total1998-2023
First Observation Used1998-09-18
Last Observation Used2023-12-31
Observations (186)
Date Type RA Dec Mag Band Observatory
1998-10-21 20:42:38 C 03 11 54.74 +34 23 38.0 557
1998-10-23 22:59:07 C 03 08 40.39 +34 52 17.4 118
1998-10-23 23:15:50 C 03 08 39.23 +34 52 26.4 118
1998-10-24 15:24:59 C 03 07 35.93 +35 00 53.5 360
1998-10-24 15:29:00 C 03 07 35.64 +35 00 55.5 360
1998-10-24 15:32:44 C 03 07 35.34 +35 00 57.3 360
1998-10-25 16:03:55 C 03 05 58.07 +35 12 52.4 z 402
1998-10-25 16:05:55 C 03 05 57.91 +35 12 53.5 z 402
1998-10-25 16:07:54 C 03 05 57.78 +35 12 54.3 z 402
1998-10-27 15:31:26 C 03 02 48.38 +35 33 42.9 422
1998-10-30 22:07:39 C 02 57 34.98 +36 00 08.7 z 587
1998-10-30 22:16:20 C 02 57 34.42 +36 00 13.5 z 587
1998-11-05 13:22:39 C 02 48 54.89 +36 27 12.7 z 402
1998-11-05 13:24:38 C 02 48 54.81 +36 27 13.8 z 402
1998-11-05 13:28:38 C 02 48 54.54 +36 27 13.7 z 402
1998-11-05 23:23:36 C 02 48 17.56 +36 28 15.7 118
1998-11-05 23:36:47 C 02 48 16.73 +36 28 17.0 118
1998-11-07 22:30:02 C 02 45 29.94 +36 32 03.0 18.4 z 627
1998-11-07 23:27:44 C 02 45 26.41 +36 32 06.4 z 627
1998-11-08 00:03:12 C 02 45 24.27 +36 32 08.4 17.9 z 627
1998-11-08 01:05:12 C 02 45 20.19 +36 32 08.6 118
1998-11-08 01:09:57 C 02 45 19.89 +36 32 08.9 118
1998-11-14 04:23:53 C 02 37 36.46 +36 29 44.4 18.3 a 704
1998-11-14 04:55:41 C 02 37 34.82 +36 29 42.6 18.6 a 704
1998-11-14 05:27:29 C 02 37 33.10 +36 29 39.7 18.8 a 704
1998-11-14 06:31:33 C 02 37 29.71 +36 29 34.4 19.1 a 704
1998-11-20 14:06:14 C 02 31 28.38 +36 10 10.6 360
1998-11-20 14:10:45 C 02 31 28.20 +36 10 10.1 360
1998-11-20 14:15:30 C 02 31 28.03 +36 10 09.2 360
1998-11-26 06:36:58 C 02 27 55.74 +35 43 55.7 c 699
1998-11-26 07:09:59 C 02 27 55.08 +35 43 48.1 c 699
1998-11-26 07:42:57 C 02 27 54.17 +35 43 41.2 c 699
1998-11-26 21:57:18 C 02 27 38.86 +35 40 38.0 z 910
1998-11-26 22:18:03 C 02 27 38.41 +35 40 33.6 z 910
1998-11-26 22:39:27 C 02 27 37.96 +35 40 29.0 z 910
2005-07-01 11:09:40 C 15 37 36.81 -45 21 16.5 r 474
2005-07-01 11:11:21 C 15 37 36.69 -45 21 16.4 r 474
2005-07-01 11:15:19 C 15 37 36.52 -45 21 15.4 r 474
2005-07-01 11:31:10 C 15 37 35.57 -45 21 13.9 r 474
2005-10-20 02:02:23 C 20 05 46.31 -24 56 12.7 r 448
2005-10-20 02:23:28 C 20 05 50.18 -24 55 43.2 r 448
2005-10-20 02:40:03 C 20 05 52.99 -24 55 20.2 r 448
2005-10-28 02:22:34 C 20 40 18.22 -20 19 15.7 r G96
2005-10-28 02:32:15 C 20 40 19.88 -20 19 01.5 r G96
2005-10-28 02:41:44 C 20 40 21.54 -20 18 47.1 r G96
2005-10-28 02:52:03 C 20 40 23.30 -20 18 32.0 r G96
2005-10-29 03:07:05 C 20 44 38.25 -19 42 19.7 r G96
2005-10-29 03:10:08 C 20 44 38.76 -19 42 15.3 r G96
2005-10-29 03:13:11 C 20 44 39.26 -19 42 10.5 r G96
2005-10-29 03:16:19 C 20 44 39.80 -19 42 05.8 r G96