2018 HR1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6078859971 ± 1.50e-01
Semi-major axis (a)1.9098105331 AU ± 6.50e-01
Inclination (i)2.69252716° ± 9.32e-01
Long. of Asc. Node (Ω)154.80838640° ± 3.47e+00
Arg. of Perihelion (ω)140.89464795° ± 3.97e+00
Mean Anomaly (M)291.48621654° ± 4.68e+02
Mean Motion (n)0.3734572500°/day ± 1.91e-01
Perihelion dist (q)0.74886610 AU ± 3.83e-01
Aphelion dist (Q)3.07062450 AU ± 1.08e+00
Orbital Period2.63914450 yr ± 1.35e+00
Physical Parameters
H (abs. magnitude)24.26
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.428″
Uncertainty4
Orbit TypeApollo
MOID0.024653 AU
Observations Used39
Oppositions1
Arc Total2018-2018
First Observation Used
Last Observation Used2018-05-05
Observations (41)
Date Type RA Dec Mag Band Observatory
2018-04-15 09:10:37 C 14 33 08.96 -01 24 54.0 V G96
2018-04-15 09:18:04 C 14 33 09.30 -01 24 42.8 V G96
2018-04-21 08:18:11 C 14 44 25.74 +03 51 11.2 U G96
2018-04-21 08:25:37 C 14 44 26.49 +03 51 33.5 U G96
2018-04-21 08:33:02 C 14 44 27.09 +03 51 57.1 U G96
2018-04-21 08:40:28 C 14 44 27.88 +03 52 19.2 U G96
2018-04-21 11:35:07 C 14 44 44.45 +04 01 17.1 U I52
2018-04-21 11:38:42 C 14 44 44.77 +04 01 28.7 U I52
2018-04-21 11:41:51 C 14 44 45.10 +04 01 39.2 U G96
2018-04-21 11:42:17 C 14 44 45.14 +04 01 39.6 U I52
2018-04-21 11:42:56 C 14 44 45.12 +04 01 41.5 U G96
2018-04-21 11:44:01 C 14 44 45.27 +04 01 43.9 U G96
2018-04-21 11:45:08 C 14 44 45.27 +04 01 47.6 U G96
2018-04-22 06:32:40 C 14 47 00.34 +05 03 33.0 U G96
2018-04-22 06:34:45 C 14 47 00.52 +05 03 41.1 U G96
2018-04-22 06:36:50 C 14 47 00.74 +05 03 46.3 U G96
2018-04-22 22:54:12 C 14 49 05.17 +06 02 39.2 S L01
2018-04-22 23:03:42 C 14 49 06.27 +06 03 14.5 S L01
2018-04-23 07:32:31 C 14 50 16.48 +06 36 33.0 U I52
2018-04-23 07:34:53 C 14 50 16.77 +06 36 42.7 U I52
2018-04-23 07:37:17 C 14 50 17.08 +06 36 52.3 U I52
2018-04-23 07:39:39 C 14 50 17.37 +06 37 01.6 U I52
2018-04-24 06:33:02 C 14 53 48.69 +08 15 23.9 U I52
2018-04-24 06:34:49 C 14 53 48.89 +08 15 33.4 U I52
2018-04-24 06:38:23 C 14 53 49.44 +08 15 49.2 U I52
2018-04-26 06:26:22 C 15 03 16.12 +12 35 39.3 U I52
2018-04-26 06:27:45 C 15 03 16.36 +12 35 47.9 U I52
2018-04-26 06:29:08 C 15 03 16.64 +12 35 56.7 U I52
2018-04-26 06:30:32 C 15 03 16.94 +12 36 05.1 U I52
2018-04-27 10:31:48 C 15 10 40.04 +15 55 02.3 U I52
2018-04-27 10:33:11 C 15 10 40.41 +15 55 12.9 U I52
2018-04-27 10:34:34 C 15 10 40.81 +15 55 23.7 U I52
2018-04-27 10:35:57 C 15 10 41.19 +15 55 34.5 U I52
2018-05-03 01:17:14 C 16 52 44.89 +46 47 15.9 V J95
2018-05-03 01:41:08 C 16 53 26.53 +46 55 08.6 V J95
2018-05-03 02:05:25 C 16 54 09.19 +47 03 07.0 V J95
2018-05-03 11:19:50 C 17 12 13.73 +50 05 10.4 o 291
2018-05-03 11:28:14 C 17 12 31.11 +50 07 51.9 o 291
2018-05-05 01:00:20 C 19 04 42.20 +60 11 40.4 V J95
2018-05-05 01:20:56 C 19 06 00.38 +60 15 20.6 V J95
2018-05-05 01:42:29 C 19 07 22.22 +60 19 07.6 V J95