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
2013-09-22 21:01:18 C 23 34 11.63 -08 59 56.3 q A13
2013-09-22 21:09:24 C 23 34 09.20 -09 00 33.5 q A13
2013-09-23 06:16:26 C 23 31 28.51 -09 41 55.2 q 703
2013-09-23 06:29:56 C 23 31 24.40 -09 42 56.6 q 703
2013-09-23 06:43:13 C 23 31 20.41 -09 43 56.3 q 703
2013-09-23 06:56:43 C 23 31 16.56 -09 44 56.2 q 703
2013-09-29 05:30:35 C 22 51 14.55 -19 28 21.5 q 703
2013-09-29 05:40:43 C 22 51 11.82 -19 28 58.2 q 703
2013-09-29 05:50:47 C 22 51 08.99 -19 29 33.4 q 703
2013-09-29 06:00:56 C 22 51 06.35 -19 30 11.2 q 703
2018-09-06 07:40:59 C 01 10 21.90 +19 45 36.0 V 703
2018-09-06 07:48:33 C 01 10 20.21 +19 45 13.5 V 703
2018-09-06 07:56:07 C 01 10 18.47 +19 44 50.2 V 703
2018-09-06 13:54:33 C 01 08 57.48 +19 26 48.2 U T05
2018-09-06 14:02:30 C 01 08 55.60 +19 26 24.0 U T05
2018-09-06 14:17:34 C 01 08 52.17 +19 25 37.7 U T05
2018-09-06 14:30:53 C 01 08 49.08 +19 24 56.2 U T05
2018-09-08 13:08:49 C 00 58 01.90 +16 53 37.5 U T08
2018-09-08 13:17:33 C 00 57 59.70 +16 53 07.3 U T08
2018-09-08 13:35:24 C 00 57 55.19 +16 52 06.4 U T08
2018-09-08 13:48:55 C 00 57 51.86 +16 51 19.7 U T08
2018-09-09 08:01:12 C 00 53 27.70 +15 47 27.3 V 703
2018-09-09 08:08:45 C 00 53 25.76 +15 47 00.0 V 703
2018-09-09 08:16:20 C 00 53 23.79 +15 46 33.3 V 703
2018-09-09 08:23:53 C 00 53 21.94 +15 46 05.3 V 703
2018-09-10 06:50:36 C 00 47 45.71 +14 23 54.3 V G96
2018-09-10 06:58:01 C 00 47 43.77 +14 23 26.5 V G96
2018-09-10 07:12:52 C 00 47 39.88 +14 22 31.0 V G96
2018-09-10 13:06:23 C 00 46 08.27 +14 00 24.5 U T05
2018-09-10 13:15:49 C 00 46 05.75 +13 59 48.1 U T05
2018-09-10 13:33:20 C 00 46 01.14 +13 58 41.9 U T05
2018-09-10 13:47:49 C 00 45 57.31 +13 57 46.9 U T05
2018-09-11 07:55:56 C 00 41 16.59 +12 47 29.8 U 734
2018-09-11 08:00:51 C 00 41 15.27 +12 47 10.4 U 734
2018-09-11 08:05:48 C 00 41 13.93 +12 46 51.0 U 734
2018-09-12 07:16:07 C 00 35 06.40 +11 13 50.4 703
2018-09-12 07:24:20 C 00 35 04.11 +11 13 17.1 703
2018-09-12 07:32:33 C 00 35 01.83 +11 12 43.7 703
2018-09-12 07:42:39 C 00 34 59.06 +11 12 01.8 703
2018-09-14 12:28:24 C 00 20 27.46 +07 27 05.0 U T05
2018-09-14 12:52:45 C 00 20 20.43 +07 25 17.3 U T05
2018-09-14 13:20:18 C 00 20 12.43 +07 23 15.6 U T05
2018-09-14 13:28:53 C 00 20 09.96 +07 22 37.1 U T05
2018-09-15 07:01:37 C 00 15 14.07 +06 04 09.6 V 703
2018-09-15 07:09:47 C 00 15 11.65 +06 03 33.1 V 703
2018-09-15 07:17:57 C 00 15 09.33 +06 02 55.9 V 703
2018-09-15 07:26:09 C 00 15 06.88 +06 02 19.0 V 703
2018-09-15 11:55:16 C 00 13 49.34 +05 42 10.6 U T08
2018-09-15 12:09:47 C 00 13 45.06 +05 41 05.6 U T08
2018-09-15 12:24:14 C 00 13 40.79 +05 39 59.3 U T08