2021 VK4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1606833865 ± 2.91e-04
Semi-major axis (a)1.0664956757 AU ± 1.83e-04
Inclination (i)5.40023051° ± 9.32e-03
Long. of Asc. Node (Ω)238.41737919° ± 7.16e-03
Arg. of Perihelion (ω)61.72033319° ± 1.09e-02
Mean Anomaly (M)323.98771377° ± 3.81e-01
Mean Motion (n)0.8948981862°/day ± 2.31e-04
Perihelion dist (q)0.89512754 AU ± 3.47e-04
Aphelion dist (Q)1.23786381 AU ± 3.76e-04
Orbital Period1.10138371 yr ± 2.84e-04
Physical Parameters
H (abs. magnitude)24.99
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.253″
Uncertainty3
Orbit TypeApollo
MOID0.024687 AU
Observations Used31
Oppositions1
Arc Total2021-2021
First Observation Used2021-11-06
Last Observation Used2021-11-11
Observations (31)
Date Type RA Dec Mag Band Observatory
2021-11-06 04:49:43 C 00 52 14.75 +25 17 42.0 V G96
2021-11-06 04:57:56 C 00 52 15.60 +25 17 14.1 V G96
2021-11-06 05:06:09 C 00 52 16.46 +25 16 46.5 V G96
2021-11-06 05:14:21 C 00 52 17.30 +25 16 19.0 V G96
2021-11-06 08:09:57 C 00 52 36.08 +25 06 19.3 V I52
2021-11-06 08:11:04 C 00 52 36.25 +25 06 15.9 V I52
2021-11-06 08:12:10 C 00 52 36.33 +25 06 12.2 V I52
2021-11-06 08:13:16 C 00 52 36.47 +25 06 08.2 V I52
2021-11-06 22:04:49 C 00 54 25.49 +24 20 20.9 V 204
2021-11-06 22:42:11 C 00 54 29.49 +24 18 19.3 V 204
2021-11-07 02:58:29 C 00 55 06.24 +24 04 53.2 V I52
2021-11-07 02:59:50 C 00 55 06.45 +24 04 49.5 V I52
2021-11-07 03:01:11 C 00 55 06.56 +24 04 45.1 V I52
2021-11-07 03:02:33 C 00 55 06.72 +24 04 40.4 V I52
2021-11-07 03:14:35 C 00 55 05.69 +24 03 56.3 u H21
2021-11-07 03:22:38 C 00 55 06.53 +24 03 30.4 u H21
2021-11-07 03:30:33 C 00 55 07.31 +24 03 05.5 u H21
2021-11-07 20:00:23 C 00 57 08.28 +23 11 14.6 V 033
2021-11-07 20:03:28 C 00 57 08.58 +23 11 05.2 V 033
2021-11-07 20:06:32 C 00 57 08.88 +23 10 55.6 V 033
2021-11-07 20:09:42 C 00 57 09.21 +23 10 46.5 V 033
2021-11-09 05:26:32 C 01 00 57.07 +21 33 33.4 V V06
2021-11-09 05:28:50 C 01 00 57.28 +21 33 26.8 V V06
2021-11-09 05:31:07 C 01 00 57.48 +21 33 20.7 V V06
2021-11-11 03:57:18 C 01 05 54.42 +19 30 15.4 V V06
2021-11-11 03:58:27 C 01 05 54.49 +19 30 12.0 V V06
2021-11-11 03:59:35 C 01 05 54.58 +19 30 09.4 V V06
2021-11-11 04:00:44 C 01 05 54.69 +19 30 06.5 V V06
2021-11-11 11:23:21 C 01 06 33.831 +19 12 02.56 V T12
2021-11-11 11:24:15 C 01 06 33.895 +19 12 00.31 V T12
2021-11-11 11:25:35 C 01 06 34.007 +19 11 56.95 V T12