2021 VR4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4058322000
Semi-major axis (a)1.5456932000 AU
Inclination (i)0.66728000°
Long. of Asc. Node (Ω)258.57182000°
Arg. of Perihelion (ω)203.72379000°
Mean Anomaly (M)11.10039000°
Mean Motion (n)0.5128839600°/day
Perihelion dist (q)0.91840110 AU
Aphelion dist (Q)2.17298530 AU
Orbital Period1.92169710 yr
Physical Parameters
H (abs. magnitude)26.48
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.720″
Uncertainty6
Orbit TypeApollo
MOID0.003430 AU
Observations Used30
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-11-23
Observations (31)
Date Type RA Dec Mag Band Observatory
2021-11-07 06:16:00 C 01 35 44.788 +14 53 23.34 U F52
2021-11-07 06:45:26 C 01 35 42.461 +14 53 27.91 U F52
2021-11-07 07:00:10 C 01 35 41.268 +14 53 30.07 U F52
2021-11-07 09:51:04 C 01 35 26.809 +14 53 47.22 V F51
2021-11-07 09:51:59 C 01 35 26.730 +14 53 47.36 V F51
2021-11-08 04:01:26 C 01 34 27.52 +14 54 53.9 u H21
2021-11-08 04:17:33 C 01 34 26.11 +14 54 55.5 u H21
2021-11-08 04:31:39 C 01 34 24.88 +14 54 56.4 u H21
2021-11-09 03:08:30 C 01 33 07.68 +14 57 29.5 V V06
2021-11-09 03:14:13 C 01 33 07.16 +14 57 31.0 V V06
2021-11-09 07:04:13 C 01 32 45.89 +14 58 03.0 o 691
2021-11-09 07:20:11 C 01 32 44.39 +14 58 04.0 o 691
2021-11-09 07:36:09 C 01 32 42.94 +14 58 05.4 o 691
2021-11-11 10:14:00 C 01 29 08.023 +15 05 55.33 V T12
2021-11-11 10:15:18 C 01 29 07.874 +15 05 55.42 V T12
2021-11-11 10:16:49 C 01 29 07.703 +15 05 55.58 V T12
2021-11-12 08:55:38 C 01 27 18.382 +15 10 20.72 V T12
2021-11-12 08:59:03 C 01 27 17.935 +15 10 21.38 V T12
2021-11-12 09:00:37 C 01 27 17.734 +15 10 21.63 V T12
2021-11-21 20:34:04 C 00 23 18.26 +17 57 29.0 V J95
2021-11-21 20:38:38 C 00 23 13.21 +17 57 38.8 V J95
2021-11-21 20:43:20 C 00 23 07.99 +17 57 49.0 V J95
2021-11-21 20:48:06 C 00 23 02.72 +17 57 59.2 V J95
2021-11-22 18:04:55 C 23 55 33.17 +18 51 27.1 X Z43
2021-11-22 18:14:55 C 23 55 14.77 +18 51 58.2 X Z43
2021-11-22 18:29:51 C 23 54 47.09 +18 52 44.5 X Z43
2021-11-22 23:15:28 C 23 45 20.10 +19 04 39.2 V Z80
2021-11-22 23:29:00 C 23 44 52.00 +19 05 09.5 V Z80
2021-11-23 20:46:47 C 22 44 48.44 +19 54 10.4 V Z80
2021-11-23 20:54:34 C 22 44 16.21 +19 54 10.9 V Z80
2021-11-23 21:02:20 C 22 43 44.06 +19 54 10.3 V Z80