369986 (1998 SO)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6985961685 ± 2.00e+00
Semi-major axis (a)0.7314470169 AU ± 3.00e+00
Inclination (i)30.34538022° ± 4.00e+00
Long. of Asc. Node (Ω)176.13671449° ± 5.00e+00
Arg. of Perihelion (ω)359.86491428° ± 6.00e+00
Mean Anomaly (M)347.53985158° ± 4.39e-05
Mean Motion (n)1.5755709566°/day ± 9.69e+00
Perihelion dist (q)0.22046093 AU ± 1.72e+00
Aphelion dist (Q)1.24243310 AU ± 5.30e+00
Orbital Period0.62556769 yr ± 3.85e+00
NGA Modelr2
A22.46814869e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.44
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.422″
Uncertainty0
Orbit TypeAten
MOID0.197798 AU
Observations Used302
Oppositions16
Arc Total1998-2025
First Observation Used1998-09-16
Last Observation Used2025-08-29
Observations (307)
Date Type RA Dec Mag Band Observatory
1998-09-16 09:29:50 c 00 50 16.95 +02 30 04.5 i 691
1998-09-16 09:59:24 c 00 50 09.10 +02 27 53.8 i 691
1998-09-16 10:29:15 c 00 50 01.24 +02 25 42.3 i 691
1998-09-16 10:52:27 c 00 49 55.11 +02 23 59.8 i 691
1998-09-16 11:01:33 c 00 49 52.74 +02 23 20.5 i 691
1998-09-16 11:08:26 c 00 49 50.95 +02 22 49.1 i 691
1998-09-16 11:16:35 c 00 49 48.77 +02 22 13.6 i 691
1998-09-16 11:29:33 c 00 49 45.42 +02 21 15.5 i 691
1998-09-16 11:57:24 c 00 49 38.07 +02 19 12.5 i 691
1998-09-16 12:07:02 c 00 49 35.59 +02 18 30.0 i 691
1998-09-17 06:34:03 c 00 44 50.11 +00 55 45.6 i 691
1998-09-17 06:43:19 c 00 44 47.55 +00 55 03.7 i 691
1998-09-17 06:51:59 c 00 44 45.23 +00 54 23.7 i 691
1998-09-17 08:18:16 C 00 44 21.69 +00 47 51.5 693
1998-09-17 08:19:52 C 00 44 21.29 +00 47 44.5 693
1998-09-17 10:08:22 c 00 43 51.69 +00 39 31.5 i 691
1998-09-17 10:24:21 c 00 43 47.29 +00 38 19.4 i 691
1998-09-17 13:29:00 C 00 43 00.07 +00 24 54.7 422
1998-09-17 13:30:17 C 00 42 59.77 +00 24 47.9 422
1998-09-17 13:32:37 C 00 42 59.03 +00 24 37.5 422
1998-09-17 13:36:02 C 00 42 58.15 +00 24 22.2 422
1998-09-17 13:37:31 C 00 42 57.73 +00 24 15.8 422
1998-09-17 21:35:34 C 00 40 50.56 -00 13 02.9 z 587
1998-09-17 21:39:29 C 00 40 49.45 -00 13 21.1 z 587
1998-09-17 21:42:50 C 00 40 48.50 -00 13 36.8 z 587
1998-09-18 09:03:34 C 00 37 42.85 -01 06 08.3 18.8 a 704
1998-09-18 09:22:09 C 00 37 37.70 -01 07 33.0 18.3 a 704
1998-09-18 09:41:40 C 00 37 32.11 -01 09 02.8 19.3 a 704
1998-09-18 10:01:05 C 00 37 26.65 -01 10 35.4 19.2 a 704
1998-09-18 10:20:26 C 00 37 21.27 -01 12 06.1 19.3 a 704
1998-09-18 12:21:57 C 00 36 50.49 -01 20 53.4 422
1998-09-18 12:25:05 C 00 36 49.64 -01 21 07.8 422
1998-09-18 12:26:27 C 00 36 49.26 -01 21 14.5 422
1998-09-18 12:27:45 C 00 36 48.88 -01 21 20.3 422
1998-09-18 14:37:44 C 00 36 12.67 -01 31 28.9 b 426
1998-09-18 14:46:43 C 00 36 10.17 -01 32 10.6 b 426
1998-09-18 15:00:04 C 00 36 06.43 -01 33 13.7 b 426
1998-09-18 15:05:25 C 00 36 04.80 -01 33 39.2 b 426
1998-09-18 15:10:31 C 00 36 03.43 -01 34 03.8 b 426
1998-09-19 12:53:00 C 00 30 02.84 -03 16 35.0 422
1998-09-19 12:54:16 C 00 30 02.49 -03 16 41.3 422
1998-09-19 12:55:24 C 00 30 02.14 -03 16 47.0 422
1998-09-19 16:27:07 C 00 29 01.27 -03 34 15.9 z 402
1998-09-19 16:29:07 C 00 29 00.70 -03 34 25.5 z 402
1998-09-19 16:31:07 C 00 29 00.14 -03 34 34.8 z 402
1998-09-20 00:08:42 C 00 26 51.19 -04 11 07.9 046
1998-09-20 00:12:08 C 00 26 50.20 -04 11 24.3 046
1998-09-20 00:14:24 C 00 26 49.56 -04 11 35.6 046
1998-09-23 22:41:08 C 23 59 04.49 -11 46 33.9 z 587
1998-09-23 22:48:14 C 23 59 02.26 -11 47 08.4 z 587