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
2021-05-17 06:43:31 C 10 54 34.25 +17 57 00.0 V T05
2021-05-17 06:54:15 C 10 54 28.38 +17 56 31.6 V T05
2021-05-17 19:55:46 C 10 47 46.91 +17 19 09.1 V 160
2021-05-17 20:00:32 C 10 47 44.06 +17 18 54.7 V 160
2021-05-17 20:05:29 C 10 47 41.15 +17 18 39.6 V 160
2021-05-17 20:53:46 C 10 47 12.39 +17 15 69.2 V L63
2021-05-17 21:33:22 C 10 46 48.94 +17 14 04.0 V L63
2021-05-17 22:13:55 C 10 46 25.64 +17 11 48.4 V 203
2021-05-17 22:30:06 C 10 46 16.15 +17 10 55.7 V 203
2021-05-17 22:50:19 C 10 46 04.32 +17 09 49.7 V 203
2021-05-18 06:13:09 C 10 41 54.958 +16 48 23.76 V 568
2021-05-18 06:14:34 C 10 41 53.979 +16 48 18.86 V 568
2021-05-18 06:16:45 C 10 41 52.521 +16 48 11.62 V 568
2021-05-19 03:43:50 C 10 27 28.38 +15 24 16.6 o 691
2021-05-19 03:52:51 C 10 27 21.04 +15 23 35.5 o 691
2021-05-19 04:01:51 C 10 27 13.71 +15 22 54.6 o 691
2021-05-20 19:42:31 C 09 50 03.26 +11 25 30.6 V 595
2021-05-20 19:44:59 C 09 50 00.24 +11 25 11.0 V 595
2021-05-20 19:47:28 C 09 49 57.20 +11 24 51.2 V 595
2021-05-21 19:42:20 C 09 17 42.55 +07 40 50.3 Z L34
2021-05-21 20:15:36 C 09 16 48.91 +07 34 32.3 Z L34
2021-05-21 20:40:43 C 09 16 08.49 +07 29 45.4 Z L34
2021-06-13 09:54:01 C 01 18 14.23 -24 43 21.9 u 807
2021-06-13 10:02:09 C 01 18 13.52 -24 43 19.3 u 807
2021-06-13 10:09:42 C 01 18 12.85 -24 43 18.2 u 807
2021-08-03 03:22:05 C 00 27 44.20 -24 05 59.4 V L81