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
1998-09-23 02:20:11 C 03 32 13.54 +21 53 29.5 557
1998-09-24 01:36:00 C 03 32 30.35 +22 27 43.4 b 611
1998-09-24 01:41:00 C 03 32 30.43 +22 27 50.7 b 611
1998-09-24 01:44:30 C 03 32 30.42 +22 27 55.9 b 611
1998-09-25 01:58:47 C 03 32 42.77 +23 03 05.6 046
1998-09-25 02:01:38 C 03 32 42.78 +23 03 09.8 046
1998-09-25 02:04:37 C 03 32 42.78 +23 03 14.1 046
1998-09-26 00:15:17 C 03 32 50.64 +23 34 52.9 557
1998-09-26 00:18:38 C 03 32 50.64 +23 34 57.9 557
1998-09-26 00:22:00 C 03 32 50.64 +23 35 02.6 557
1998-09-29 07:39:38 C 03 32 45.02 +25 24 26.2 17.7 a 704
1998-09-29 07:57:38 C 03 32 44.76 +25 24 49.5 17.7 a 704
1998-09-29 08:15:19 C 03 32 44.51 +25 25 15.6 18.3 a 704
1998-09-29 08:33:00 C 03 32 44.38 +25 25 38.0 18.1 a 704
1998-10-02 14:32:09 C 03 31 49.61 +27 06 32.9 z 402
1998-10-02 14:34:10 C 03 31 49.60 +27 06 35.0 z 402
1998-10-02 14:36:10 C 03 31 49.55 +27 06 37.9 z 402
1998-10-02 18:15:45 C 03 31 44.55 +27 11 16.0 360
1998-10-02 18:22:14 C 03 31 44.38 +27 11 23.9 360
1998-10-02 18:27:14 C 03 31 44.26 +27 11 30.0 360
1998-10-13 22:08:45 C 03 22 43.55 +32 00 06.3 557
1998-10-13 22:10:06 C 03 22 43.46 +32 00 07.6 557
1998-10-13 22:11:28 C 03 22 43.39 +32 00 09.1 557
1998-10-16 01:44:28 C 03 20 03.72 +32 44 25.5 118
1998-10-16 01:47:07 C 03 20 03.59 +32 44 27.6 118
1998-10-16 01:49:43 C 03 20 03.42 +32 44 29.8 118
1998-10-18 09:23:17 C 03 16 57.21 +33 27 49.3 18.2 a 704
1998-10-18 09:52:04 C 03 16 55.32 +33 28 10.0 a 704
1998-10-18 10:20:49 C 03 16 53.56 +33 28 30.0 18.2 a 704
1998-10-18 10:49:50 C 03 16 51.79 +33 28 52.5 19.3 a 704
1998-10-18 11:18:39 C 03 16 49.92 +33 29 10.9 19.0 a 704
1998-10-19 09:43:31 C 03 15 31.46 +33 45 12.1 658
1998-10-19 09:50:18 C 03 15 31.01 +33 45 17.0 658
1998-10-19 09:53:17 C 03 15 30.81 +33 45 19.1 658
1998-10-19 23:31:31 C 03 14 41.77 +33 54 44.0 z 071
1998-10-19 23:34:16 C 03 14 41.58 +33 54 46.0 z 071
1998-10-19 23:37:01 C 03 14 41.40 +33 54 47.7 z 071
1998-10-19 23:39:46 C 03 14 41.21 +33 54 49.7 z 071
1998-10-19 23:42:31 C 03 14 41.02 +33 54 51.6 z 071
1998-10-19 23:45:16 C 03 14 40.86 +33 54 53.4 z 071
1998-10-19 23:48:02 C 03 14 40.67 +33 54 55.3 z 071
1998-10-19 23:50:47 C 03 14 40.44 +33 54 57.6 z 071
1998-10-19 23:53:32 C 03 14 40.29 +33 54 59.0 z 071
1998-10-21 01:16:52 C 03 13 06.53 +34 11 36.9 118
1998-10-21 01:29:30 C 03 13 05.70 +34 11 44.6 118
1998-10-21 10:14:32 C 03 12 33.10 +34 17 15.5 658
1998-10-21 10:19:47 C 03 12 32.74 +34 17 18.7 658
1998-10-21 10:26:53 C 03 12 32.25 +34 17 22.9 658
1998-10-21 20:35:39 C 03 11 55.12 +34 23 34.1 557
1998-10-21 20:38:56 C 03 11 54.91 +34 23 36.2 557