2021 UM

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6078882000
Semi-major axis (a)2.6066947000 AU
Inclination (i)18.00422000°
Long. of Asc. Node (Ω)211.38145000°
Arg. of Perihelion (ω)206.83326000°
Mean Anomaly (M)343.24159000°
Mean Motion (n)0.2341902500°/day
Perihelion dist (q)1.02211580 AU
Aphelion dist (Q)4.19127360 AU
Orbital Period4.20857680 yr
Physical Parameters
H (abs. magnitude)24.38
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.690″
Uncertainty8
Orbit TypeAmor
MOID0.062353 AU
Observations Used25
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-10-28
Observations (26)
Date Type RA Dec Mag Band Observatory
2021-10-17 06:46:06 C 02 03 34.82 +35 05 10.2 V G96
2021-10-17 06:54:22 C 02 03 38.89 +35 04 34.6 V G96
2021-10-17 07:02:38 C 02 03 42.96 +35 03 59.3 V G96
2021-10-17 07:10:53 C 02 03 47.00 +35 03 23.5 V G96
2021-10-17 09:22:17 C 02 04 56.615 +34 54 02.81 V F51
2021-10-17 09:32:59 C 02 04 57.24 +34 52 56.9 V G96
2021-10-17 09:34:46 C 02 04 58.11 +34 52 48.7 V G96
2021-10-17 09:36:33 C 02 04 58.98 +34 52 40.8 V G96
2021-10-17 22:46:14 C 02 12 00.97 +33 51 33.3 V L01
2021-10-17 22:50:39 C 02 12 04.50 +33 51 11.2 V I93
2021-10-17 22:50:43 C 02 12 03.25 +33 51 11.8 V L01
2021-10-17 22:55:12 C 02 12 05.60 +33 50 51.0 V L01
2021-10-17 23:00:05 C 02 12 08.17 +33 50 27.7 V L01
2021-10-17 23:03:16 C 02 12 10.98 +33 50 10.3 V I93
2021-10-17 23:16:49 C 02 12 18.02 +33 49 05.7 V I93
2021-10-18 05:18:34 C 02 15 34.66 +33 19 22.7 u H21
2021-10-18 05:26:39 C 02 15 38.91 +33 18 42.3 u H21
2021-10-18 05:30:42 C 02 15 41.07 +33 18 22.0 u H21
2021-10-27 05:36:55 C 04 34 48.93 +01 05 51.9 u 807
2021-10-27 05:40:27 C 04 34 51.15 +01 05 12.1 u 807
2021-10-27 05:44:04 C 04 34 53.46 +01 04 29.7 u 807
2021-10-27 09:08:39 C 04 37 06.46 +00 23 50.2 V V06
2021-10-27 09:09:50 C 04 37 07.18 +00 23 36.4 V V06
2021-10-27 09:11:01 C 04 37 07.91 +00 23 23.6 V V06
2021-10-28 09:31:56 C 04 52 49.29 -04 07 42.3 V I52
2021-10-28 09:33:09 C 04 52 50.01 -04 07 54.8 V I52