2018 HH2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2275164557 ± 2.92e-05
Semi-major axis (a)1.2482817719 AU ± 5.14e-05
Inclination (i)18.60520346° ± 1.88e-03
Long. of Asc. Node (Ω)42.68405186° ± 1.14e-04
Arg. of Perihelion (ω)115.46268236° ± 2.50e-03
Mean Anomaly (M)191.53844798° ± 1.28e-01
Mean Motion (n)0.7067134113°/day ± 4.37e-05
Perihelion dist (q)0.96427713 AU ± 5.39e-05
Aphelion dist (Q)1.53228642 AU ± 7.29e-05
Orbital Period1.39466192 yr ± 8.61e-05
Physical Parameters
H (abs. magnitude)23.12
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.348″
Uncertainty3
Orbit TypeApollo
MOID0.061150 AU
Observations Used119
Oppositions1
Arc Total2018-2018
First Observation Used2018-04-23
Last Observation Used2018-06-04
Observations (121)
Date Type RA Dec Mag Band Observatory
2018-04-23 09:21:42 C 16 08 58.34 +33 45 45.4 U 703
2018-04-23 09:29:23 C 16 08 54.73 +33 44 28.5 U 703
2018-04-23 09:37:03 C 16 08 51.27 +33 43 12.5 U 703
2018-04-23 09:44:43 C 16 08 47.80 +33 41 56.9 U 703
2018-04-23 10:31:58 C 16 08 26.08 +33 33 57.7 U H01
2018-04-23 10:36:07 C 16 08 24.22 +33 33 16.0 U H01
2018-04-23 10:49:16 C 16 08 18.31 +33 31 03.0 U H01
2018-04-23 11:01:28 C 16 08 12.84 +33 28 59.7 U H01
2018-04-23 11:05:34 C 16 08 11.44 +33 28 23.4 U I52
2018-04-23 11:05:50 C 16 08 11.38 +33 28 19.0 U I52
2018-04-23 11:06:06 C 16 08 11.31 +33 28 17.5 U I52
2018-04-23 11:28:54 C 16 08 00.96 +33 24 26.3 U I52
2018-04-23 11:29:10 C 16 08 00.83 +33 24 23.3 U I52
2018-04-23 11:29:26 C 16 08 00.69 +33 24 21.1 U I52
2018-04-23 11:29:43 C 16 08 00.58 +33 24 18.5 U I52
2018-04-24 07:57:58 C 15 59 39.43 +29 50 33.0 U I52
2018-04-24 07:58:35 C 15 59 39.17 +29 50 26.2 U I52
2018-04-24 07:59:10 C 15 59 38.90 +29 50 19.8 U I52
2018-04-24 07:59:45 C 15 59 38.64 +29 50 13.3 U I52
2018-04-24 08:06:50 C 15 59 33.26 +29 48 44.6 q 734
2018-04-24 08:10:33 C 15 59 31.59 +29 48 04.0 q 734
2018-04-24 08:14:19 C 15 59 29.94 +29 47 23.6 q 734
2018-04-24 08:18:03 C 15 59 28.24 +29 46 42.4 q 734
2018-04-24 09:18:41 C 15 59 04.40 +29 35 46.7 U U69
2018-04-24 09:27:52 C 15 59 00.30 +29 34 06.9 U U69
2018-04-24 09:36:50 C 15 58 56.28 +29 32 29.3 U U69
2018-04-24 10:21:47 C 15 58 34.89 +29 24 26.4 U I52
2018-04-24 10:22:22 C 15 58 34.63 +29 24 19.8 U I52
2018-04-24 10:22:58 C 15 58 34.36 +29 24 13.2 U I52
2018-04-24 10:23:34 C 15 58 34.09 +29 24 06.7 U I52
2018-04-24 20:55:46 C 15 54 22.27 +27 25 53.6 o K88
2018-04-24 21:01:33 C 15 54 19.83 +27 24 49.3 o K88
2018-04-24 21:07:18 C 15 54 17.35 +27 23 44.5 o K88
2018-04-24 21:29:16 C 15 54 08.92 +27 19 35.8 U 587
2018-04-24 21:33:56 C 15 54 06.92 +27 18 43.3 U 587
2018-04-24 21:38:30 C 15 54 04.97 +27 17 52.3 U 587
2018-04-24 21:53:55 C 15 53 58.44 +27 15 04.1 q 160
2018-04-24 21:57:54 C 15 53 56.67 +27 14 19.4 q 160
2018-04-24 21:59:53 C 15 53 55.82 +27 13 57.2 q 160
2018-04-24 22:01:52 C 15 53 54.94 +27 13 35.1 q 160
2018-04-24 22:05:51 C 15 53 53.24 +27 12 50.3 q 160
2018-04-24 22:18:17 C 15 53 47.86 +27 10 25.0 U K38
2018-04-24 22:26:48 C 15 53 44.20 +27 08 49.2 U 204
2018-04-24 22:28:31 C 15 53 42.99 +27 08 33.3 S L01
2018-04-24 22:31:26 C 15 53 41.74 +27 08 00.1 S L01
2018-04-24 22:34:22 C 15 53 40.48 +27 07 26.2 S L01
2018-04-24 22:35:40 C 15 53 40.37 +27 07 09.1 U 204
2018-04-24 22:36:28 C 15 53 39.98 +27 07 00.2 U K38
2018-04-24 22:37:18 C 15 53 39.17 +27 06 53.8 S L01
2018-04-24 22:44:31 C 15 53 36.53 +27 05 29.0 U 204