IAA RAS IAA Minor Planet Database

2021 EQ4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5732744360 ± 1.18e-04
Semi-major axis (a)1.3743452340 AU ± 2.61e-04
Inclination (i)14.19950676° ± 3.26e-03
Long. of Asc. Node (Ω)357.13876255° ± 4.93e-05
Arg. of Perihelion (ω)280.15903203° ± 2.01e-03
Mean Anomaly (M)291.39327098° ± 2.94e-01
Mean Motion (n)0.6117423049°/day ± 1.74e-04
Perihelion dist (q)0.58646825 AU ± 1.96e-04
Aphelion dist (Q)2.16222222 AU ± 4.42e-04
Orbital Period1.61117888 yr ± 4.60e-04
Physical Parameters
H (abs. magnitude)26.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.354″
Uncertainty3
Orbit TypeApollo
MOID0.011050 AU
Observations Used45
Oppositions1
Arc Total2021-2021
First Observation Used2021-03-15
Last Observation Used2021-03-19
Observations (45)
Date Type RA Dec Mag Band Observatory
2021-03-15 10:07:10 C 12 34 21.143 +06 29 04.44 – U F51
2021-03-15 10:26:39 C 12 34 16.829 +06 27 26.71 – U F51
2021-03-15 10:46:11 C 12 34 12.456 +06 25 47.63 – U F51
2021-03-15 11:05:54 C 12 34 08.022 +06 24 07.60 – U F51
2021-03-15 20:21:04 C 12 32 24.11 +05 31 34.8 – V L01
2021-03-15 20:25:33 C 12 32 23.05 +05 31 07.5 – V L01
2021-03-15 20:29:01 C 12 32 22.25 +05 30 46.6 – V L01
2021-03-15 23:21:14 C 12 31 44.482 +05 13 43.26 – V J04
2021-03-15 23:22:55 C 12 31 44.045 +05 13 31.94 – V J04
2021-03-15 23:54:26 C 12 31 31.02 +05 09 26.6 – V 204
2021-03-16 00:17:55 C 12 31 24.73 +05 06 54.5 – V 204
2021-03-16 02:29:18 C 12 30 49.74 +04 52 32.6 – V B37
2021-03-16 02:37:52 C 12 30 47.30 +04 51 32.9 – V B37
2021-03-16 02:46:29 C 12 30 44.98 +04 50 34.5 – V B37
2021-03-16 05:17:48 C 12 30 18.75 +04 33 14.2 – q 858
2021-03-16 05:25:48 C 12 30 16.44 +04 32 17.4 – q 858
2021-03-16 05:33:47 C 12 30 14.13 +04 31 20.4 – q 858
2021-03-16 21:52:54 C 12 25 14.86 +02 10 23.2 – V 033
2021-03-16 21:53:53 C 12 25 14.47 +02 10 13.5 – V 033
2021-03-16 21:54:53 C 12 25 14.08 +02 10 02.8 – V 033
2021-03-17 12:03:21 C 12 19 05.01 -00 36 55.2 – V 474
2021-03-17 12:04:48 C 12 19 04.20 -00 37 15.3 – V 474
2021-03-17 12:06:15 C 12 19 03.42 -00 37 36.5 – V 474
2021-03-17 12:07:42 C 12 19 02.56 -00 37 57.8 – V 474
2021-03-17 21:58:44 C 12 13 10.26 -03 31 33.5 – V 203
2021-03-17 22:17:01 C 12 12 56.43 -03 37 34.3 – V 203
2021-03-18 00:45:35 C 12 10 57.92 -04 28 48.6 – V 033
2021-03-18 00:46:05 C 12 10 57.49 -04 28 59.4 – V 033
2021-03-18 00:46:35 C 12 10 57.09 -04 29 10.0 – V 033
2021-03-18 04:18:07 C 12 08 25.43 -05 47 37.3 – V I52
2021-03-18 04:18:18 C 12 08 25.24 -05 47 42.9 – V I52
2021-03-18 04:18:29 C 12 08 25.11 -05 47 47.1 – V I52
2021-03-18 04:18:41 C 12 08 24.95 -05 47 52.0 – V I52
2021-03-18 13:26:01 C 11 58 46.80 -09 57 23.9 – V 474
2021-03-18 13:28:12 C 11 58 43.96 -09 58 35.9 – V 474
2021-03-18 13:31:07 C 11 58 40.13 -10 00 12.3 – V 474
2021-03-18 13:32:35 C 11 58 38.24 -10 01 00.5 – V 474
2021-03-19 04:50:31 C 11 31 49.35 -21 48 00.3 – V I52
2021-03-19 04:51:08 C 11 31 47.67 -21 48 38.6 – V I52
2021-03-19 04:51:45 C 11 31 46.03 -21 49 17.1 – V I52
2021-03-19 04:52:22 C 11 31 44.36 -21 49 56.0 – V I52
2021-03-19 11:50:22 C 11 09 00.62 -29 52 32.4 – V 474
2021-03-19 11:50:50 C 11 08 58.62 -29 53 10.5 – V 474
2021-03-19 11:51:18 C 11 08 56.69 -29 53 48.1 – V 474
2021-03-19 11:51:55 C 11 08 54.11 -29 54 38.0 – V 474