IAA RAS IAA Minor Planet Database

2018 HB

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5882986768 ± 1.07e-06
Semi-major axis (a)0.8101528490 AU ± 8.40e-08
Inclination (i)22.05532425° ± 4.90e-05
Long. of Asc. Node (Ω)14.37378266° ± 1.55e-05
Arg. of Perihelion (ω)354.84631401° ± 3.49e-05
Mean Anomaly (M)8.09833143° ± 2.91e-04
Mean Motion (n)1.3516424747°/day ± 2.10e-07
Perihelion dist (q)0.33354100 AU ± 8.70e-07
Aphelion dist (Q)1.28676470 AU ± 8.79e-07
Orbital Period0.72920636 yr ± 1.13e-07
NGA Modelr2
A2-2.30320411e-14 ± 9.88e-14 AU/d²
Physical Parameters
H (abs. magnitude)22.19
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.284″
Uncertainty0
Orbit TypeAten
MOID0.180375 AU
Observations Used43
Oppositions5
Arc Total2010-2023
First Observation Used2010-04-11
Last Observation Used2023-03-18
Observations (43)
Date Type RA Dec Mag Band Observatory
2010-04-11 09:40:27 C 13 08 02.248 -24 10 11.49 – V F51
2010-04-11 09:54:25 C 13 07 56.816 -24 10 21.85 – V F51
2010-04-17 09:04:06 C 12 10 44.241 -25 11 38.80 – V F51
2010-04-17 09:16:27 C 12 10 38.986 -25 11 39.39 – V F51
2018-04-16 05:58:24 C 11 41 32.23 -10 48 12.7 – U G96
2018-04-16 06:13:15 C 11 41 27.55 -10 48 11.6 – U G96
2018-04-16 06:20:41 C 11 41 25.18 -10 48 10.1 – U G96
2018-04-16 08:33:48 C 11 40 43.27 -10 47 57.4 – U I52
2018-04-16 08:35:35 C 11 40 42.77 -10 47 57.4 – U I52
2018-04-16 08:37:22 C 11 40 42.18 -10 47 56.1 – U I52
2018-04-16 08:39:09 C 11 40 41.65 -10 47 55.8 – U I52
2018-04-17 04:44:27 C 11 34 35.77 -10 45 53.9 – u H21
2018-04-17 04:49:59 C 11 34 34.05 -10 45 52.6 – u H21
2018-04-17 04:58:54 C 11 34 31.33 -10 45 51.7 – u H21
2018-04-17 20:17:11 C 11 29 57.74 -10 44 03.6 – S 033
2018-04-17 20:20:55 C 11 29 56.61 -10 44 02.6 – S 033
2018-04-17 20:24:39 C 11 29 55.47 -10 44 01.9 – S 033
2018-04-17 20:28:24 C 11 29 54.33 -10 44 01.7 – S 033
2018-04-17 20:32:09 C 11 29 53.17 -10 44 01.3 – S 033
2018-04-17 22:06:41 C 11 29 24.95 -10 43 44.8 – t Z84
2018-04-17 22:20:23 C 11 29 20.79 -10 43 43.1 – t Z84
2018-04-17 22:34:04 C 11 29 16.64 -10 43 40.8 – t Z84
2018-04-17 22:47:54 C 11 29 12.49 -10 43 38.8 – t Z84
2018-04-18 03:46:01 C 11 27 45.69 -10 42 58.3 – U I52
2018-04-18 03:48:16 C 11 27 44.97 -10 42 57.4 – U I52
2018-04-18 03:50:33 C 11 27 44.33 -10 42 57.0 – U I52
2018-04-18 03:52:21 C 11 27 43.75 -10 42 56.0 – U I52
2018-04-20 04:23:43 C 11 13 53.29 -10 35 29.8 – U I52
2018-04-20 04:30:52 C 11 13 51.24 -10 35 28.8 – U I52
2018-04-21 04:41:07 C 11 07 17.57 -10 31 13.0 – U I52
2018-04-21 04:50:04 C 11 07 15.14 -10 31 11.6 – U I52
2018-04-21 04:59:00 C 11 07 12.69 -10 31 10.2 – U I52
2018-05-08 03:51:43 C 09 50 43.01 -09 18 37.4 – U V06
2018-05-08 04:07:10 C 09 50 41.08 -09 18 35.4 – U V06
2018-05-08 04:22:12 C 09 50 39.17 -09 18 33.4 – U V06
2018-05-08 04:37:40 C 09 50 37.22 -09 18 31.4 – U V06
2018-05-10 04:42:51 C 09 45 06.15 -09 13 13.6 – o 291
2018-05-10 04:59:00 C 09 45 04.32 -09 13 11.6 – o 291
2018-05-10 05:15:11 C 09 45 02.49 -09 13 09.5 – o 291
2023-03-18 09:29:52 C 11 25 47.626 +48 28 47.42 – V I52
2023-03-18 09:34:02 C 11 25 45.872 +48 28 37.96 – V I52
2023-03-18 09:38:10 C 11 25 44.180 +48 28 28.78 – V I52
2023-03-18 09:42:19 C 11 25 42.438 +48 28 19.34 – V I52