2021 FN4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5089777630 ± 8.40e-06
Semi-major axis (a)2.0270603244 AU ± 3.31e-05
Inclination (i)5.66215217° ± 6.87e-05
Long. of Asc. Node (Ω)57.94603211° ± 1.12e-05
Arg. of Perihelion (ω)198.80379674° ± 3.20e-05
Mean Anomaly (M)197.26683102° ± 1.38e-02
Mean Motion (n)0.3415169523°/day ± 8.37e-06
Perihelion dist (q)0.99533170 AU ± 2.36e-05
Aphelion dist (Q)3.05878895 AU ± 5.28e-05
Orbital Period2.88602448 yr ± 7.08e-05
Physical Parameters
H (abs. magnitude)23.08
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.235″
Uncertainty2
Orbit TypeApollo
MOID0.000744 AU
Observations Used172
Oppositions1
Arc Total2021-2021
First Observation Used2021-03-19
Last Observation Used2021-08-03
Observations (176)
Date Type RA Dec Mag Band Observatory
2021-04-30 07:46:36 C 12 07 52.22 +22 01 38.0 o 691
2021-05-01 06:54:50 C 12 06 00.69 +22 03 01.1 o 691
2021-05-01 07:18:58 C 12 05 58.27 +22 03 00.6 o 691
2021-05-01 07:43:05 C 12 05 55.90 +22 02 59.4 o 691
2021-05-02 20:11:43 C 12 02 50.58 +22 03 01.0 V 033
2021-05-02 20:13:27 C 12 02 50.38 +22 03 00.9 V 033
2021-05-02 20:15:12 C 12 02 50.21 +22 03 00.9 V 033
2021-05-05 21:23:01 C 11 55 33.73 +21 56 32.1 V K14
2021-05-05 21:36:34 C 11 55 31.91 +21 56 29.2 V K14
2021-05-05 21:50:39 C 11 55 30.04 +21 56 27.0 V K14
2021-05-06 05:43:45 C 11 54 36.59 +21 55 12.3 V G96
2021-05-06 05:51:11 C 11 54 35.56 +21 55 10.5 V G96
2021-05-06 05:58:37 C 11 54 34.53 +21 55 08.5 V G96
2021-05-06 06:06:04 C 11 54 33.53 +21 55 06.9 V G96
2021-05-06 22:58:40 C 11 52 36.20 +21 50 55.6 V Z99
2021-05-06 23:01:42 C 11 52 35.79 +21 50 54.6 V Z99
2021-05-06 23:04:45 C 11 52 35.36 +21 50 53.8 V Z99
2021-05-06 23:07:47 C 11 52 34.96 +21 50 52.4 V Z99
2021-05-06 23:10:49 C 11 52 34.53 +21 50 51.4 V Z99
2021-05-07 07:45:40 C 11 51 29.41 +21 49 09.9 V I52
2021-05-07 07:55:18 C 11 51 28.07 +21 49 06.0 V I52
2021-05-07 08:00:16 C 11 51 27.35 +21 49 04.4 V I52
2021-05-07 08:05:14 C 11 51 26.68 +21 49 02.1 V I52
2021-05-10 05:05:10 C 11 41 44.59 +21 23 18.1 o 691
2021-05-10 05:20:24 C 11 41 41.63 +21 23 09.5 o 691
2021-05-10 05:35:39 C 11 41 38.65 +21 23 00.6 o 691
2021-05-11 05:40:08 C 11 37 30.09 +21 08 54.4 V U52
2021-05-11 05:43:54 C 11 37 29.29 +21 08 51.5 V U52
2021-05-11 05:47:42 C 11 37 28.49 +21 08 49.0 V U52
2021-05-12 19:30:26 S 11 29 53.506 +20 41 13.38 L C51
2021-05-12 21:04:41 S 11 29 32.196 +20 39 48.96 L C51
2021-05-13 21:57:49 C 11 23 24.06 +20 14 35.7 V G40
2021-05-13 22:28:23 C 11 23 14.65 +20 13 59.2 V G40
2021-05-14 20:07:01 C 11 17 07.24 +19 45 54.3 V 033
2021-05-14 20:07:26 C 11 17 07.09 +19 45 53.5 V 033
2021-05-14 20:07:50 C 11 17 06.95 +19 45 52.7 V 033
2021-05-14 20:08:15 C 11 17 06.81 +19 45 52.1 V 033
2021-05-14 20:20:14 C 11 17 02.74 +19 45 35.0 V 033
2021-05-14 20:20:39 C 11 17 02.60 +19 45 34.4 V 033
2021-05-14 20:21:04 C 11 17 02.46 +19 45 33.8 V 033
2021-05-14 20:21:28 C 11 17 02.32 +19 45 33.2 V 033
2021-05-14 20:33:17 C 11 16 59.02 +19 45 49.6 V K14
2021-05-14 20:58:31 C 11 16 50.31 +19 45 13.2 V K14
2021-05-14 22:27:46 C 11 16 21.61 +19 43 41.1 V G40
2021-05-14 23:27:54 C 11 16 00.29 +19 42 07.8 V G40
2021-05-15 21:05:07 C 11 08 43.26 +19 06 39.0 V 033
2021-05-15 21:05:32 C 11 08 43.10 +19 06 38.3 V 033
2021-05-15 21:05:56 C 11 08 42.94 +19 06 37.6 V 033
2021-05-15 21:06:21 C 11 08 42.77 +19 06 36.8 V 033
2021-05-17 06:37:26 C 10 54 37.59 +17 57 15.9 V T05