IAA RAS IAA Minor Planet Database

1993 HC

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5078781616 ± 1.18e-07
Semi-major axis (a)1.9898422765 AU ± 1.39e-09
Inclination (i)9.43067109° ± 1.73e-05
Long. of Asc. Node (Ω)201.00322640° ± 3.52e-05
Arg. of Perihelion (ω)306.90890340° ± 2.63e-05
Mean Anomaly (M)241.66093562° ± 1.12e-05
Mean Motion (n)0.3511432267°/day ± 3.67e-10
Perihelion dist (q)0.97924484 AU ± 2.34e-07
Aphelion dist (Q)3.00043971 AU ± 2.34e-07
Orbital Period2.80690672 yr ± 2.94e-09
Physical Parameters
H (abs. magnitude)20.77
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.304″
Uncertainty0
Orbit TypeApollo
MOID0.069069 AU
Observations Used54
Oppositions18
Arc Total1993-2021
First Observation Used1993-04-19
Last Observation Used2021-05-07
Observations (58)
Date Type RA Dec Mag Band Observatory
1993-04-19 05:19:53 C 12 59 28.00 +00 10 49.6 – a 691
1993-04-19 06:07:15 C 12 59 34.57 +00 11 44.1 – a 691
1993-04-19 07:26:32 C 12 59 45.34 +00 13 13.7 – a 691
1993-04-20 07:16:30 c 13 03 10.04 +00 38 55.5 – i 691
1993-04-20 08:02:09 c 13 03 15.94 +00 39 44.4 – i 691
1993-04-20 08:47:55 c 13 03 21.71 +00 40 28.9 – i 691
1993-04-21 04:11:22 c 13 06 01.12 +00 59 36.8 – i 691
1993-04-21 04:25:48 c 13 06 02.87 +00 59 51.0 – i 691
1993-04-21 04:43:07 c 13 06 04.97 +01 00 07.2 – i 691
1993-04-21 04:55:01 c 13 06 06.39 +01 00 18.3 – i 691
1993-04-21 05:05:39 c 13 06 07.63 +01 00 28.5 – i 691
1993-04-21 05:16:18 c 13 06 08.94 +01 00 39.1 – i 691
1993-04-21 08:41:10 c 13 06 33.35 +01 03 51.3 – i 691
1993-04-21 08:51:42 c 13 06 34.60 +01 04 01.0 – i 691
1993-04-21 09:02:22 c 13 06 35.89 +01 04 10.9 – i 691
1993-04-22 07:35:11 c 13 09 26.84 +01 24 17.6 – i 691
1993-04-22 07:45:57 c 13 09 28.04 +01 24 26.9 – i 691
1993-04-22 07:57:02 c 13 09 29.28 +01 24 36.1 – i 691
1993-04-25 04:37:26 C 13 17 14.49 +02 15 36.2 – i 691
1993-04-25 04:49:22 C 13 17 15.65 +02 15 43.9 – i 691
1993-04-25 04:58:35 C 13 17 16.50 +02 15 49.8 – i 691
1993-04-28 03:36:00 c 13 24 03.79 +02 54 38.0 – i 691
1993-04-28 03:44:40 c 13 24 04.61 +02 54 43.0 – i 691
1993-04-28 04:10:59 c 13 24 06.69 +02 54 54.3 – i 691
1993-05-13 06:19:42 c 13 48 26.89 +03 54 26.8 – i 691
1993-05-13 07:13:23 c 13 48 29.48 +03 54 24.7 – i 691
1993-05-13 07:57:57 c 13 48 31.59 +03 54 21.8 – i 691
1993-05-27 07:06:39 c 14 04 44.44 +02 55 00.9 – i 691
1993-05-27 07:21:17 c 14 04 45.05 +02 54 56.9 – i 691
1993-05-27 07:35:01 c 14 04 45.68 +02 54 53.2 – i 691
2020-11-16 07:34:00 C 02 36 06.48 +04 00 09.3 – V G96
2020-11-16 07:45:35 C 02 36 05.68 +04 00 00.2 – V G96
2020-11-16 07:57:05 C 02 36 04.90 +03 59 51.0 – V G96
2020-11-16 08:04:33 C 02 36 04.35 +03 59 44.8 – V G96
2020-11-16 09:39:38 C 02 35 58.05 +03 58 26.5 – V V06
2020-11-16 09:43:04 C 02 35 57.83 +03 58 23.7 – V V06
2020-11-16 09:46:30 C 02 35 57.59 +03 58 21.5 – V V06
2020-11-16 09:49:55 C 02 35 57.33 +03 58 18.9 – V V06
2020-12-07 07:00:08 C 02 07 50.339 -01 57 35.39 – U F51
2020-12-07 07:15:10 C 02 07 49.649 -01 57 43.60 – U F51
2020-12-07 07:30:07 C 02 07 48.986 -01 57 51.91 – U F51
2020-12-07 07:45:03 C 02 07 48.318 -01 57 59.84 – U F51
2020-12-11 06:00:35 C 02 04 19.866 -02 45 35.91 – U F52
2020-12-11 06:18:18 C 02 04 19.206 -02 45 44.75 – U F52
2020-12-11 06:35:58 C 02 04 18.573 -02 45 52.95 – U F52
2021-01-13 02:41:51 C 02 08 41.66 -04 45 02.7 – V G96
2021-01-13 02:49:18 C 02 08 41.95 -04 45 02.4 – V G96
2021-01-13 03:04:12 C 02 08 42.61 -04 45 00.5 – V G96
2021-04-30 04:27:59 C 09 38 18.03 +14 41 27.2 – V I52
2021-04-30 04:30:24 C 09 38 18.76 +14 41 27.2 – V I52