2021 UH4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4995536000
Semi-major axis (a)2.0504606000 AU
Inclination (i)5.67866000°
Long. of Asc. Node (Ω)34.21143000°
Arg. of Perihelion (ω)326.58754000°
Mean Anomaly (M)148.15299000°
Mean Motion (n)0.3356811300°/day
Perihelion dist (q)1.02614560 AU
Aphelion dist (Q)3.07477560 AU
Orbital Period2.93614260 yr
Physical Parameters
H (abs. magnitude)25.53
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.750″
Uncertainty8
Orbit TypeAmor
MOID0.048802 AU
Observations Used26
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-11-06
Observations (26)
Date Type RA Dec Mag Band Observatory
2021-10-28 07:09:58 C 01 59 03.640 +12 31 23.43 U F52
2021-10-28 07:27:25 C 01 59 06.171 +12 32 34.37 U F52
2021-10-28 07:44:43 C 01 59 08.658 +12 33 44.60 U F52
2021-10-28 10:05:02 C 01 59 28.314 +12 43 07.20 V F51
2021-10-28 10:05:58 C 01 59 28.436 +12 43 11.08 V F51
2021-10-28 22:29:09 C 02 01 28.54 +13 30 39.0 V L01
2021-10-28 22:32:53 C 02 01 29.09 +13 30 53.2 V L01
2021-10-28 22:36:37 C 02 01 29.60 +13 31 08.3 V L01
2021-10-28 22:48:11 C 02 01 31.21 +13 31 50.5 V L01
2021-10-28 23:26:19 C 02 01 36.72 +13 34 07.8 V 033
2021-10-28 23:28:23 C 02 01 36.98 +13 34 15.5 V 033
2021-10-28 23:30:27 C 02 01 37.31 +13 34 23.4 V 033
2021-10-29 04:02:21 C 02 02 24.22 +13 51 42.9 V I52
2021-10-29 04:04:33 C 02 02 24.51 +13 51 51.1 V I52
2021-10-29 22:34:55 C 02 05 09.02 +14 57 55.6 V 033
2021-10-29 22:36:59 C 02 05 09.30 +14 58 03.4 V 033
2021-10-29 22:39:05 C 02 05 09.53 +14 58 10.7 V 033
2021-10-30 07:33:26 C 02 06 25.06 +15 28 46.6 V 734
2021-10-30 07:39:19 C 02 06 25.77 +15 29 05.7 V 734
2021-10-30 07:45:13 C 02 06 26.51 +15 29 25.8 V 734
2021-10-30 07:51:41 C 02 06 27.32 +15 29 47.4 V 734
2021-10-31 07:58:59 C 02 09 48.15 +16 47 13.8 V I52
2021-10-31 08:01:50 C 02 09 48.46 +16 47 23.0 V I52
2021-10-31 08:03:38 C 02 09 48.69 +16 47 28.6 V I52
2021-10-31 08:57:15 C 02 09 54.77 +16 50 10.2 V I52
2021-11-06 06:33:10 C 02 25 32.45 +22 27 42.9 V G96