IAA RAS IAA Minor Planet Database

2018 HS1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4816877067 ± 6.35e-05
Semi-major axis (a)1.0649732560 AU ± 9.04e-05
Inclination (i)30.42347325° ± 9.42e-03
Long. of Asc. Node (Ω)37.77451688° ± 1.17e-03
Arg. of Perihelion (ω)32.52633734° ± 4.24e-03
Mean Anomaly (M)57.29914914° ± 3.29e-01
Mean Motion (n)0.8968178083°/day ± 1.14e-04
Perihelion dist (q)0.55198873 AU ± 8.22e-05
Aphelion dist (Q)1.57795778 AU ± 1.50e-04
Orbital Period1.09902622 yr ± 1.40e-04
Physical Parameters
H (abs. magnitude)22.41
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.405″
Uncertainty3
Orbit TypeApollo
MOID0.242699 AU
Observations Used44
Oppositions1
Arc Total2018-2018
First Observation Used2018-04-12
Last Observation Used2018-05-09
Observations (44)
Date Type RA Dec Mag Band Observatory
2018-04-12 09:12:09 C 15 30 34.000 +09 49 26.00 – V G96
2018-04-12 09:35:43 C 15 30 26.660 +09 48 40.80 – V G96
2018-04-21 08:21:36 C 14 26 03.01 +02 32 38.5 – U G96
2018-04-21 08:29:01 C 14 26 00.85 +02 32 23.9 – U G96
2018-04-21 08:36:26 C 14 25 58.76 +02 32 08.7 – U G96
2018-04-21 08:43:52 C 14 25 56.60 +02 31 53.5 – U G96
2018-04-21 10:52:56 C 14 25 19.74 +02 27 33.6 – U I52
2018-04-21 10:54:44 C 14 25 19.25 +02 27 30.3 – U I52
2018-04-21 10:56:31 C 14 25 18.70 +02 27 25.7 – U I52
2018-04-21 10:58:18 C 14 25 18.20 +02 27 21.9 – U I52
2018-04-21 22:11:52 C 14 22 12.75 +02 04 44.7 – d L01
2018-04-21 22:19:00 C 14 22 10.72 +02 04 29.6 – d L01
2018-04-21 22:27:46 C 14 22 08.29 +02 04 12.4 – d L01
2018-04-22 06:09:35 C 14 20 01.49 +01 48 54.9 – U H01
2018-04-22 06:15:50 C 14 19 59.74 +01 48 42.5 – U H01
2018-04-22 06:26:49 C 14 19 56.66 +01 48 20.7 – U H01
2018-04-22 06:42:00 C 14 19 52.41 +01 47 50.5 – U H01
2018-04-22 07:12:19 C 14 19 43.99 +01 46 50.4 – U I52
2018-04-22 07:14:51 C 14 19 43.29 +01 46 46.0 – U I52
2018-04-22 07:17:23 C 14 19 42.55 +01 46 40.4 – U I52
2018-04-22 07:19:55 C 14 19 41.87 +01 46 35.4 – U I52
2018-04-22 20:40:42 C 14 16 05.31 +01 20 04.6 – S L01
2018-04-22 20:48:58 C 14 16 03.06 +01 19 48.7 – S L01
2018-04-22 21:01:32 C 14 15 59.61 +01 19 23.5 – S L01
2018-04-22 22:20:49 C 14 15 38.16 +01 16 46.2 – U J95
2018-04-22 22:31:42 C 14 15 35.16 +01 16 25.0 – U J95
2018-04-22 22:48:36 C 14 15 30.60 +01 15 51.7 – U J95
2018-04-23 07:08:12 C 14 13 16.83 +00 59 38.4 – U I52
2018-04-23 07:09:59 C 14 13 16.35 +00 59 35.3 – U I52
2018-04-23 07:11:47 C 14 13 15.84 +00 59 31.7 – U I52
2018-04-23 07:13:34 C 14 13 15.41 +00 59 28.1 – U I52
2018-04-24 09:53:10 C 14 06 16.30 +00 07 58.6 – U H01
2018-04-24 10:04:36 C 14 06 13.31 +00 07 36.8 – U H01
2018-04-24 10:14:43 C 14 06 10.66 +00 07 17.7 – U H01
2018-04-24 10:24:08 C 14 06 08.21 +00 06 59.7 – U H01
2018-04-26 05:52:55 C 13 55 20.77 -01 14 02.3 – U I52
2018-04-26 05:55:19 C 13 55 20.16 -01 14 07.3 – U I52
2018-04-26 05:57:41 C 13 55 19.63 -01 14 10.2 – U I52
2018-04-26 06:00:04 C 13 55 19.02 -01 14 15.0 – U I52
2018-05-08 05:09:52 C 13 01 28.35 -08 22 00.0 – U V06
2018-05-08 05:17:13 C 13 01 27.28 -08 22 08.9 – U V06
2018-05-08 05:31:56 C 13 01 25.24 -08 22 26.6 – U V06
2018-05-09 03:28:03 C 12 58 30.19 -08 47 45.1 – u H21
2018-05-09 03:44:24 C 12 58 27.99 -08 48 02.7 – u H21