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
2018-09-15 12:38:41 C 00 13 36.55 +05 38 53.9 U T08
2018-09-16 08:01:20 C 00 08 03.96 +04 10 15.0 V 703
2018-09-16 08:08:55 C 00 08 01.70 +04 09 40.2 V 703
2018-09-16 08:16:31 C 00 07 59.46 +04 09 05.2 V 703
2018-09-16 08:24:07 C 00 07 57.21 +04 08 30.5 V 703
2018-09-17 11:43:51 C 00 00 01.65 +02 01 43.0 U T05
2018-09-17 11:58:19 C 23 59 57.30 +02 00 35.3 U T05
2018-09-17 12:12:41 C 23 59 52.98 +01 59 28.0 U T05
2018-09-17 12:27:20 C 23 59 48.58 +01 58 19.4 U T05
2018-09-18 05:58:45 C 23 54 43.54 +00 36 00.1 V 703
2018-09-18 06:06:19 C 23 54 41.27 +00 35 24.5 V 703
2018-09-18 06:13:52 C 23 54 39.01 +00 34 48.3 V 703
2018-09-18 06:21:24 C 23 54 36.71 +00 34 13.2 V 703
2018-09-29 06:06:21 C 22 40 58.61 -18 15 29.6 V 703
2018-09-29 06:14:11 C 22 40 56.52 -18 15 57.2 V 703
2018-09-29 06:22:01 C 22 40 54.62 -18 16 23.8 V 703
2018-09-29 06:29:51 C 22 40 52.54 -18 16 51.2 V 703
2018-10-02 08:22:57 C 22 23 27.57 -22 11 04.4 U T05
2018-10-02 08:44:41 C 22 23 22.51 -22 12 07.0 U T05
2018-10-02 08:56:49 C 22 23 19.75 -22 12 41.5 U T05
2018-10-02 09:00:45 C 22 23 18.82 -22 12 53.7 U T05
2023-08-21 23:51:13 C 02 04 32.01 +33 14 06.6 X C95
2023-08-22 00:53:41 C 02 04 24.52 +33 12 59.0 X C95
2023-08-22 01:55:16 C 02 04 17.02 +33 11 52.5 X C95
2023-08-24 12:01:46 C 01 57 02.117 +32 01 38.85 X F52
2023-08-24 12:35:27 C 01 56 57.409 +32 00 55.45 X F52
2023-08-24 12:52:27 C 01 56 55.024 +32 00 33.44 X F52
2023-09-08 11:18:38 C 00 47 25.730 +18 22 06.24 V T05
2023-09-08 11:21:14 C 00 47 25.054 +18 21 57.42 V T05
2023-09-08 11:25:48 C 00 47 23.801 +18 21 40.86 V T05
2023-09-08 11:33:36 C 00 47 21.730 +18 21 13.36 V T05
2023-09-10 10:43:38 C 00 34 55.697 +15 25 51.56 V T05
2023-09-10 10:48:18 C 00 34 54.398 +15 25 33.17 V T05
2023-09-10 10:57:46 C 00 34 51.797 +15 24 55.84 V T05
2023-09-10 11:46:13 C 00 34 38.196 +15 21 47.27 V T05
2023-09-11 09:13:40 C 00 28 47.408 +13 56 14.70 X F52
2023-09-11 09:29:14 C 00 28 42.988 +13 55 11.79 X F52
2023-09-11 09:44:50 C 00 28 38.566 +13 54 09.06 X F52
2023-09-12 11:46:37 C 00 21 21.082 +12 05 58.63 V T05
2023-09-12 11:55:14 C 00 21 18.547 +12 05 21.52 V T05
2023-09-12 12:40:09 C 00 21 05.450 +12 02 11.08 V T05
2023-09-12 13:17:13 C 00 20 54.600 +11 59 33.22 V T05
2023-09-13 04:51:25 C 00 16 30.878 +10 53 06.72 V W68
2023-09-13 04:56:02 C 00 16 29.532 +10 52 46.81 V W68
2023-09-13 05:22:47 C 00 16 21.658 +10 50 50.64 V W68
2023-09-13 05:31:18 C 00 16 19.109 +10 50 14.10 V W68
2023-09-16 05:05:35 C 23 55 33.539 +05 25 45.08 V 703
2023-09-16 05:13:26 C 23 55 31.170 +05 25 08.62 V 703
2023-09-16 05:21:13 C 23 55 28.841 +05 24 31.64 V 703
2023-09-16 05:28:56 C 23 55 26.526 +05 23 56.54 V 703