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
1998-09-18 03:20:32 C 03 29 41.95 +18 51 10.1 z 910
1998-09-18 03:41:14 C 03 29 42.43 +18 51 42.6 z 910
1998-09-18 03:58:52 C 03 29 42.83 +18 52 10.4 z 910
1998-09-18 22:29:15 C 03 30 14.99 +19 21 13.3 b 611
1998-09-18 22:33:45 C 03 30 15.10 +19 21 18.8 b 611
1998-09-18 22:38:00 C 03 30 15.27 +19 21 25.6 b 611
1998-09-19 00:34:28 C 03 30 17.94 +19 24 35.4 z 108
1998-09-19 00:42:04 C 03 30 18.22 +19 24 48.4 z 108
1998-09-19 00:54:16 C 03 30 18.37 +19 25 05.0 z 108
1998-09-19 01:04:16 C 03 30 18.49 +19 25 15.3 z 108
1998-09-19 01:37:12 C 03 30 19.14 +19 26 10.2 557
1998-09-19 01:40:35 C 03 30 19.21 +19 26 15.4 557
1998-09-19 01:43:56 C 03 30 19.27 +19 26 20.8 557
1998-09-19 02:51:11 C 03 30 20.79 +19 28 04.8 z 910
1998-09-19 03:19:24 C 03 30 21.37 +19 28 49.1 z 910
1998-09-19 03:48:05 C 03 30 21.96 +19 29 33.9 z 910
1998-09-19 05:40:30 C 03 30 26.05 +19 32 30.6 b 816
1998-09-19 05:45:58 C 03 30 26.17 +19 32 38.9 b 816
1998-09-19 09:10:17 C 03 30 30.79 +19 38 02.4 z 734
1998-09-19 09:21:11 C 03 30 31.15 +19 38 19.7 z 734
1998-09-19 09:45:29 C 03 30 31.48 +19 38 57.7 z 734
1998-09-19 10:57:34 C 03 30 32.93 +19 40 52.0 711
1998-09-19 11:04:30 C 03 30 33.07 +19 41 02.8 711
1998-09-19 11:12:18 C 03 30 33.21 +19 41 14.9 711
1998-09-19 14:41:19 C 03 30 39.63 +19 47 02.8 422
1998-09-19 14:43:04 C 03 30 39.64 +19 47 05.5 422
1998-09-19 14:46:51 C 03 30 39.79 +19 47 11.5 422
1998-09-19 14:50:29 C 03 30 39.86 +19 47 17.5 422
1998-09-19 14:59:38 C 03 30 40.28 +19 47 03.4 z 402
1998-09-19 15:02:07 C 03 30 40.32 +19 47 07.7 z 402
1998-09-19 15:04:38 C 03 30 40.36 +19 47 11.5 z 402
1998-09-19 15:07:07 C 03 30 40.43 +19 47 15.6 z 402
1998-09-19 16:27:36 C 03 30 42.01 +19 49 49.1 b 426
1998-09-19 16:35:28 C 03 30 42.14 +19 50 00.4 b 426
1998-09-19 16:44:48 C 03 30 42.36 +19 50 15.2 b 426
1998-09-19 16:53:42 C 03 30 42.52 +19 50 28.6 b 426
1998-09-20 00:23:21 C 03 30 53.13 +20 01 32.5 046
1998-09-20 00:24:40 C 03 30 53.15 +20 01 35.0 046
1998-09-20 00:27:20 C 03 30 53.22 +20 01 39.1 046
1998-09-20 00:30:50 C 03 30 53.27 +20 01 44.0 046
1998-09-20 01:01:09 C 03 30 54.10 +20 02 32.6 17.9 b 122
1998-09-20 01:03:26 C 03 30 54.14 +20 02 36.0 17.9 b 122
1998-09-20 01:05:43 C 03 30 54.18 +20 02 39.6 17.9 b 122
1998-09-20 01:08:01 C 03 30 54.22 +20 02 43.1 17.8 b 122
1998-09-20 01:21:40 C 03 30 54.17 +20 03 02.9 557
1998-09-20 01:28:19 C 03 30 54.32 +20 03 14.1 557
1998-09-21 22:19:30 C 03 31 49.02 +21 11 32.9 b 611
1998-09-21 22:23:19 C 03 31 49.06 +21 11 40.0 b 611
1998-09-23 02:13:29 C 03 32 13.47 +21 53 19.5 557
1998-09-23 02:16:49 C 03 32 13.50 +21 53 24.3 557