2021 HO

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8906795000
Semi-major axis (a)2.5150867000 AU
Inclination (i)12.76562000°
Long. of Asc. Node (Ω)349.24651000°
Arg. of Perihelion (ω)346.81896000°
Mean Anomaly (M)42.64806000°
Mean Motion (n)0.2471010700°/day
Perihelion dist (q)0.27495050 AU
Aphelion dist (Q)4.75522290 AU
Orbital Period3.98868230 yr
Physical Parameters
H (abs. magnitude)21.08
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.630″
Uncertainty9
Orbit TypeApollo
MOID0.154663 AU
Observations Used26
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-04-18
Observations (30)
Date Type RA Dec Mag Band Observatory
2021-04-16 01:35:49 C 12 08 29.49 -46 47 16.7 V W94
2021-04-16 01:43:52 C 12 08 23.91 -46 47 41.6 V W94
2021-04-16 01:51:54 C 12 08 18.35 -46 48 06.1 V W94
2021-04-16 02:37:33 C 12 07 46.80 -46 50 25.4 V W95
2021-04-16 02:45:11 C 12 07 41.48 -46 50 48.3 V W95
2021-04-16 02:52:46 C 12 07 36.23 -46 51 11.1 V W95
2021-04-16 09:10:10 C 12 03 14.15 -47 09 57.0 V 474
2021-04-16 09:11:29 C 12 03 13.26 -47 10 01.3 V 474
2021-04-16 09:14:06 C 12 03 11.41 -47 10 09.3 V 474
2021-04-16 09:15:24 C 12 03 10.40 -47 10 13.0 V 474
2021-04-17 05:10:57 C 11 48 04.33 -48 08 59.3 V W95
2021-04-17 05:18:34 C 11 47 58.21 -48 09 20.1 V W95
2021-04-17 05:26:13 C 11 47 51.90 -48 09 41.9 V W95
2021-04-17 08:05:46 C 11 45 46.99 -48 17 03.8 V 474
2021-04-17 08:06:40 C 11 45 46.26 -48 17 06.2 V 474
2021-04-17 08:10:22 C 11 45 43.19 -48 17 16.7 V 474
2021-04-17 08:11:15 C 11 45 42.51 -48 17 19.5 V 474
2021-04-17 11:49:15 C 11 42 41.05 -48 27 42.7 q E23
2021-04-17 12:02:35 C 11 42 29.83 -48 28 19.4 q E23
2021-04-17 12:15:54 C 11 42 18.47 -48 28 58.6 q E23
2021-04-18 04:31:25 C 11 28 01.33 -49 12 17.9 V W95
2021-04-18 04:39:02 C 11 27 54.25 -49 12 36.7 V W95
2021-04-18 04:46:37 C 11 27 47.11 -49 12 54.7 V W95
2021-04-18 17:07:44 C 11 16 05.972 -49 42 30.03 V K93
2021-04-18 17:12:18 C 11 16 01.408 -49 42 40.63 V K93
2021-04-18 17:16:54 C 11 15 56.831 -49 42 51.50 V K93
2021-04-18 17:20:49 C 11 15 52.898 -49 43 00.60 V K93
2021-04-19 08:26:46 C 11 00 20.53 -50 14 14.5 V 474
2021-04-19 08:30:20 C 11 00 16.65 -50 14 21.4 V 474
2021-04-19 08:31:14 C 11 00 15.66 -50 14 22.4 V 474