2021 LH9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4490085318 ± 3.71e-08
Semi-major axis (a)2.1684813127 AU ± 7.09e-08
Inclination (i)6.33377008° ± 3.94e-06
Long. of Asc. Node (Ω)293.98543803° ± 2.11e-05
Arg. of Perihelion (ω)30.55124580° ± 2.79e-05
Mean Anomaly (M)118.86068020° ± 2.61e-05
Mean Motion (n)0.3086588618°/day ± 1.51e-08
Perihelion dist (q)1.19481470 AU ± 8.94e-08
Aphelion dist (Q)3.14214792 AU ± 1.30e-07
Orbital Period3.19325445 yr ± 1.57e-07
Physical Parameters
H (abs. magnitude)19.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.321″
Uncertainty0
Orbit TypeAmor
MOID0.188443 AU
Observations Used168
Oppositions4
Arc Total2018-2024
First Observation Used2018-11-07
Last Observation Used2024-04-20
Observations (172)
Date Type RA Dec Mag Band Observatory
2021-08-03 10:00:14 C 19 01 05.83 -14 56 58.0 V T05
2021-08-03 10:09:39 C 19 01 06.26 -14 56 44.0 V T05
2021-08-04 05:46:21 C 19 02 11.10 -14 28 03.5 V 734
2021-08-04 05:50:34 C 19 02 11.30 -14 27 56.6 V 734
2021-08-04 05:52:43 C 19 02 11.39 -14 27 53.6 V 734
2021-08-04 05:54:54 C 19 02 11.48 -14 27 50.3 V 734
2021-08-04 05:57:00 C 19 02 11.57 -14 27 47.0 V 734
2021-08-06 01:26:26 C 19 04 45.06 -13 23 37.6 V W46
2021-08-06 01:52:57 C 19 04 46.42 -13 22 58.8 V W46
2021-08-06 02:46:21 C 19 04 49.14 -13 21 40.6 V W46
2021-08-10 08:32:55 C 19 11 30.34 -10 51 45.7 V T08
2021-08-10 08:52:13 C 19 11 31.48 -10 51 17.5 V T08
2021-08-10 09:01:31 C 19 11 32.04 -10 51 03.5 V T08
2021-08-11 20:11:41 C 19 14 06.94 -10 00 02.3 V G17
2021-08-11 20:22:01 C 19 14 07.62 -09 59 47.6 V G17
2021-08-11 20:32:22 C 19 14 08.32 -09 59 32.6 V G17
2021-08-15 22:29:42 C 19 21 55.62 -07 39 37.4 V 160
2021-08-15 22:33:39 C 19 21 55.90 -07 39 31.7 V 160
2021-08-15 22:38:23 C 19 21 56.35 -07 39 24.5 V 160
2021-08-18 08:40:10 C 19 27 00.25 -06 18 52.5 V T08
2021-08-18 08:44:49 C 19 27 00.61 -06 18 46.1 V T08
2021-08-18 08:53:30 C 19 27 01.28 -06 18 33.9 V T08
2021-08-24 21:53:26 C 19 42 07.38 -02 54 59.9 V Z80
2021-08-24 22:02:17 C 19 42 08.19 -02 54 49.1 V Z80
2021-08-25 08:05:49 C 19 43 08.49 -02 42 21.8 o 691
2021-08-25 08:07:51 C 19 43 08.69 -02 42 19.1 o 691
2021-08-25 08:13:56 C 19 43 09.29 -02 42 11.6 o 691
2021-08-25 21:32:36 C 19 44 32.79 -02 26 14.8 X 595
2021-08-25 21:34:46 C 19 44 33.04 -02 26 10.2 V 160
2021-08-25 21:40:47 C 19 44 33.65 -02 26 03.2 V 160
2021-08-25 21:45:58 C 19 44 34.14 -02 25 56.9 V 160
2021-08-25 21:56:50 C 19 44 35.11 -02 25 45.0 X 595
2021-08-28 00:59:56 C 19 49 58.66 -01 25 45.4 X W34
2021-08-28 01:07:52 C 19 49 59.44 -01 25 36.2 X W34
2021-08-28 01:18:41 C 19 50 00.48 -01 25 23.3 X W34
2021-08-28 08:43:17 C 19 50 46.57 -01 16 47.5 V T05
2021-08-28 08:47:53 C 19 50 47.05 -01 16 42.9 V T05
2021-08-28 08:59:06 C 19 50 48.15 -01 16 30.0 V T05
2021-08-28 09:44:29 C 19 50 52.58 -01 15 38.2 V T05
2021-08-28 21:38:46 C 19 52 10.00 -01 02 24.2 V 160
2021-08-28 21:43:08 C 19 52 10.44 -01 02 19.3 V 160
2021-08-28 21:47:29 C 19 52 10.88 -01 02 14.7 V 160
2021-08-31 20:33:06 C 19 59 56.89 +00 14 15.5 V K87
2021-08-31 20:37:19 C 19 59 57.33 +00 14 19.6 V K87
2021-08-31 20:41:32 C 19 59 57.77 +00 14 23.9 V K87
2021-09-01 20:12:58 C 20 02 36.07 +00 38 32.5 V K87
2021-09-01 20:17:09 C 20 02 36.49 +00 38 37.0 V K87
2021-09-01 20:21:22 C 20 02 36.89 +00 38 41.6 V K87
2021-09-01 21:27:40 C 20 02 43.95 +00 39 51.4 V 160
2021-09-01 21:31:45 C 20 02 44.39 +00 39 55.3 V 160