136923 (1998 JH2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4417424222 ± 1.53e-08
Semi-major axis (a)2.1339941525 AU ± 4.90e-09
Inclination (i)6.62456112° ± 2.51e-06
Long. of Asc. Node (Ω)51.05815944° ± 1.33e-05
Arg. of Perihelion (ω)287.32179464° ± 1.36e-05
Mean Anomaly (M)210.17840997° ± 5.05e-06
Mean Motion (n)0.3161712954°/day ± 1.09e-09
Perihelion dist (q)1.19131841 AU ± 3.28e-08
Aphelion dist (Q)3.07666990 AU ± 3.35e-08
Orbital Period3.11738067 yr ± 1.07e-08
Physical Parameters
H (abs. magnitude)16.31
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.298″
Uncertainty0
Orbit TypeAmor
MOID0.216916 AU
Observations Used1183
Oppositions26
Arc Total1986-2025
First Observation Used1986-11-02
Last Observation Used2025-03-06
Observations (1267)
Date Type RA Dec Mag Band Observatory
2008-12-09 00:31:05 C 06 01 19.74 +30 31 04.6 c A24
2008-12-11 07:35:34 C 05 57 26.36 +30 39 25.9 o G58
2008-12-11 07:39:44 C 05 57 26.07 +30 39 26.6 o G58
2008-12-11 07:43:50 C 05 57 25.75 +30 39 27.1 o G58
2008-12-11 07:47:55 C 05 57 25.45 +30 39 27.7 o G58
2008-12-20 23:45:14 C 05 41 18.79 +31 01 38.8 c A24
2008-12-21 00:06:52 C 05 41 17.31 +31 01 39.8 c A24
2008-12-21 00:28:31 C 05 41 15.83 +31 01 40.9 c A24
2008-12-21 00:48:45 C 05 41 14.49 +31 01 42.0 c A24
2008-12-21 00:50:11 C 05 41 14.36 +31 01 42.1 c A24
2008-12-21 19:00:11 C 05 40 02.99 +31 02 33.4 o A78
2008-12-21 19:18:36 C 05 40 01.77 +31 02 35.0 o A78
2008-12-31 05:14:15 C 05 26 33.42 +31 04 46.6 19.6 c 704
2008-12-31 05:32:37 C 05 26 32.36 +31 04 46.7 19.3 c 704
2008-12-31 06:09:35 C 05 26 30.33 +31 04 45.4 19.1 c 704
2009-01-05 21:30:56 C 05 20 04.32 +30 59 54.6 r B15
2009-01-05 21:41:56 C 05 20 03.85 +30 59 53.7 r B15
2009-01-05 21:43:31 C 05 20 03.77 +30 59 53.7 r B15
2010-03-12 09:03:02 C 11 15 15.53 +14 25 11.8 u 926
2010-03-12 09:07:55 C 11 15 15.25 +14 25 13.5 u 926
2010-03-12 09:12:48 C 11 15 15.07 +14 25 15.2 u 926
2010-03-12 11:56:14 C 11 15 07.806 +14 25 53.86 L F51
2010-03-12 12:08:57 C 11 15 07.202 +14 25 56.06 L F51
2010-05-16 04:41:22 C 10 41 04.48 +15 02 57.1 r G96
2010-05-16 04:49:56 C 10 41 04.56 +15 02 55.8 r G96
2010-05-16 04:58:30 C 10 41 04.63 +15 02 54.3 r G96
2010-05-16 05:07:03 C 10 41 04.63 +15 02 51.2 r G96
2011-06-03 18:48:21 C 22 40 25.19 -18 49 53.3 u E12
2011-06-03 19:09:06 C 22 40 28.46 -18 49 41.9 u E12
2011-06-03 19:29:45 C 22 40 31.74 -18 49 30.8 u E12
2011-06-08 17:39:59 C 22 59 42.24 -17 41 32.4 u E12
2011-06-08 18:01:38 C 22 59 45.72 -17 41 19.4 u E12
2011-06-08 18:23:29 C 22 59 49.21 -17 41 06.2 u E12
2011-06-08 18:45:15 C 22 59 52.73 -17 40 53.2 u E12
2011-07-08 17:55:35 C 00 59 14.59 -08 38 02.0 u E12
2011-07-08 18:44:47 C 00 59 22.44 -08 37 19.6 u E12
2011-07-22 07:12:56 C 01 50 24.50 -03 55 15.2 u I39
2011-07-22 07:43:42 C 01 50 29.06 -03 54 48.4 u I39
2011-07-22 08:08:38 C 01 50 32.72 -03 54 26.7 u I39
2011-07-24 06:56:58 C 01 57 33.88 -03 14 08.4 u I39
2011-07-24 07:50:50 C 01 57 41.72 -03 13 22.3 u I39
2011-07-24 07:53:22 C 01 57 42.09 -03 13 20.1 u I39
2011-07-24 08:28:55 C 01 57 47.29 -03 12 49.6 u I39
2011-08-27 18:10:38 C 03 40 33.97 +07 10 03.6 r E12
2011-08-27 18:27:52 C 03 40 35.57 +07 10 14.7 r E12
2011-08-27 18:45:10 C 03 40 37.16 +07 10 25.5 r E12
2011-08-27 19:02:17 C 03 40 38.74 +07 10 36.2 r E12
2011-08-30 18:05:21 C 03 47 17.17 +07 54 37.7 r E12
2011-08-30 18:17:46 C 03 47 18.24 +07 54 45.5 r E12
2011-08-30 18:30:14 C 03 47 19.30 +07 54 53.0 r E12