2020 HH4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4772518000
Semi-major axis (a)2.0222630000 AU
Inclination (i)29.33766000°
Long. of Asc. Node (Ω)44.44266000°
Arg. of Perihelion (ω)222.38071000°
Mean Anomaly (M)322.14199000°
Mean Motion (n)0.3427264500°/day
Perihelion dist (q)1.05713430 AU
Aphelion dist (Q)2.98739170 AU
Orbital Period2.87578530 yr
Physical Parameters
H (abs. magnitude)22.20
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.420″
Uncertainty7
Orbit TypeAmor
MOID0.129829 AU
Observations Used28
Oppositions1
Arc Total
First Observation Used
Last Observation Used2020-05-17
Observations (29)
Date Type RA Dec Mag Band Observatory
2020-04-20 13:02:29 C 16 56 22.537 -05 55 35.56 U F51
2020-04-20 13:22:29 C 16 56 24.102 -05 56 58.18 U F51
2020-04-20 13:42:29 C 16 56 25.658 -05 58 21.27 U F51
2020-04-21 02:21:54 C 16 57 33.10 -06 52 01.1 V 033
2020-04-21 02:25:04 C 16 57 33.36 -06 52 14.7 V 033
2020-04-21 02:28:14 C 16 57 33.60 -06 52 27.9 V 033
2020-04-21 09:00:49 C 16 58 09.90 -07 20 48.4 V I52
2020-04-21 09:02:32 C 16 58 09.99 -07 20 55.9 V I52
2020-04-21 09:04:17 C 16 58 10.22 -07 21 04.5 V I52
2020-04-21 09:06:02 C 16 58 10.32 -07 21 11.2 V I52
2020-04-22 01:21:38 C 16 59 39.80 -08 34 30.1 V 033
2020-04-22 01:24:58 C 16 59 40.07 -08 34 45.9 V 033
2020-04-22 08:58:55 C 17 00 22.40 -09 09 58.6 u H21
2020-04-22 09:03:06 C 17 00 22.77 -09 10 18.4 u H21
2020-04-22 09:07:17 C 17 00 23.13 -09 10 38.0 u H21
2020-04-22 09:12:10 C 17 00 23.56 -09 11 01.5 u H21
2020-04-23 01:55:24 C 17 02 00.58 -10 32 01.9 V 033
2020-04-23 01:58:29 C 17 02 00.91 -10 32 18.1 V 033
2020-04-23 02:01:33 C 17 02 01.17 -10 32 33.1 V 033
2020-04-23 02:42:55 C 17 02 04.88 -10 35 55.8 V L01
2020-04-23 02:44:49 C 17 02 05.04 -10 36 05.7 V L01
2020-04-23 02:46:43 C 17 02 05.20 -10 36 15.3 V L01
2020-04-25 11:15:37 C 17 07 59.67 -15 41 34.0 V I52
2020-04-25 11:17:21 C 17 07 59.90 -15 41 48.2 V I52
2020-04-25 11:19:06 C 17 08 00.10 -15 41 57.9 V I52
2020-04-25 11:20:50 C 17 08 00.31 -15 42 09.4 V I52
2020-05-17 15:08:17 C 22 18 15.16 -78 33 50.3 V 474
2020-05-17 15:15:02 C 22 18 28.38 -78 33 59.4 V 474
2020-05-17 15:22:07 C 22 18 42.25 -78 34 08.9 V 474