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
2008-09-05 07:01:06 C 01 30 12.73 +18 39 55.1 19.5 c 704
2008-09-05 07:20:14 C 01 30 09.05 +18 39 03.5 19.5 c 704
2008-09-05 07:39:56 C 01 30 05.33 +18 38 09.9 20.0 c 704
2008-09-07 07:44:15 C 01 20 50.37 +16 18 53.4 19.1 c 704
2008-09-07 08:03:35 C 01 20 46.32 +16 17 53.7 19.3 c 704
2008-09-07 08:22:58 C 01 20 42.25 +16 16 55.2 19.1 c 704
2008-09-07 08:42:18 C 01 20 38.27 +16 15 55.3 19.2 c 704
2008-09-07 09:01:39 C 01 20 34.18 +16 14 55.2 19.6 c 704
2008-09-20 08:59:08 C 00 01 02.35 -05 10 04.8 r 703
2008-09-20 09:09:48 C 00 00 59.11 -05 10 55.5 r 703
2008-09-20 09:20:24 C 00 00 55.90 -05 11 45.8 r 703
2008-09-20 09:31:01 C 00 00 52.70 -05 12 36.2 r 703
2008-09-21 21:25:54 C 23 50 17.93 -08 02 43.1 r A13
2008-09-21 21:28:17 C 23 50 17.18 -08 02 54.5 r A13
2008-09-21 21:31:31 C 23 50 16.23 -08 03 09.7 r A13
2008-09-21 21:58:41 C 23 50 07.97 -08 05 17.6 r A13
2008-09-21 22:02:09 C 23 50 06.93 -08 05 33.8 r A13
2008-09-21 22:04:37 C 23 50 06.17 -08 05 45.6 r A13
2008-09-23 05:30:49 C 23 40 46.21 -10 32 00.0 18.2 c 704
2008-09-23 05:48:09 C 23 40 40.86 -10 33 19.8 18.7 c 704
2008-09-23 06:05:53 C 23 40 35.44 -10 34 41.6 18.8 c 704
2008-09-23 06:23:51 C 23 40 29.96 -10 36 04.0 18.3 c 704
2008-09-23 06:41:19 C 23 40 24.61 -10 37 24.4 18.6 c 704
2013-09-02 08:25:37 C 01 36 52.60 +22 38 41.4 u H21
2013-09-02 08:29:52 C 01 36 51.86 +22 38 31.7 u H21
2013-09-02 08:34:07 C 01 36 51.11 +22 38 21.8 u H21
2013-09-02 08:37:57 C 01 36 50.45 +22 38 13.0 u H21
2013-09-02 08:42:22 C 01 36 49.67 +22 38 03.0 u H21
2013-09-04 08:56:07 C 01 28 14.71 +20 40 00.1 q 703
2013-09-04 09:02:33 C 01 28 13.50 +20 39 43.7 q 703
2013-09-04 09:08:58 C 01 28 12.19 +20 39 27.8 q 703
2013-09-16 08:16:35 C 00 19 46.75 +03 12 15.0 q G96
2013-09-16 08:25:27 C 00 19 44.17 +03 11 34.7 q G96
2013-09-16 08:34:20 C 00 19 41.58 +03 10 54.2 q G96
2013-09-16 08:43:16 C 00 19 39.00 +03 10 13.7 q G96
2013-09-16 13:49:00 C 00 18 14.08 +02 46 53.6 o 300
2013-09-16 13:50:13 C 00 18 13.68 +02 46 48.1 o 300
2013-09-16 13:51:25 C 00 18 13.34 +02 46 43.1 o 300
2013-09-16 13:52:37 C 00 18 12.93 +02 46 37.7 o 300
2013-09-16 13:53:49 C 00 18 12.69 +02 46 31.5 o 300
2013-09-16 13:55:01 C 00 18 12.29 +02 46 26.5 o 300
2013-09-16 13:56:13 C 00 18 11.94 +02 46 20.7 o 300
2013-09-22 06:56:40 C 23 38 18.06 -07 55 13.1 q H45
2013-09-22 07:00:10 C 23 38 17.01 -07 55 28.3 q H45
2013-09-22 07:01:17 C 23 38 16.71 -07 55 34.4 q H45
2013-09-22 07:02:15 C 23 38 16.44 -07 55 38.4 q H45
2013-09-22 07:04:01 C 23 38 15.86 -07 55 46.8 q H45
2013-09-22 07:05:25 C 23 38 15.47 -07 55 52.8 q H45
2013-09-22 20:44:48 C 23 34 16.57 -08 58 41.0 q A13
2013-09-22 20:52:54 C 23 34 14.13 -08 59 18.0 q A13