2021 RL4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3523036000
Semi-major axis (a)1.5721615000 AU
Inclination (i)15.34274000°
Long. of Asc. Node (Ω)351.83904000°
Arg. of Perihelion (ω)36.39792000°
Mean Anomaly (M)27.91546000°
Mean Motion (n)0.4999865600°/day
Perihelion dist (q)1.01828330 AU
Aphelion dist (Q)2.12603970 AU
Orbital Period1.97126830 yr
Physical Parameters
H (abs. magnitude)24.92
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.550″
Uncertainty8
Orbit TypeAmor
MOID0.057567 AU
Observations Used20
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-09-12
Observations (21)
Date Type RA Dec Mag Band Observatory
2021-09-08 11:20:51 C 00 59 57.870 -09 15 22.66 V F52
2021-09-08 11:39:48 C 00 59 58.077 -09 13 02.95 U F52
2021-09-08 11:58:20 C 00 59 58.278 -09 10 45.48 U F52
2021-09-08 14:24:34 C 01 00 00.037 -08 52 36.15 V F51
2021-09-08 14:25:32 C 01 00 00.050 -08 52 28.58 V F51
2021-09-08 23:45:55 C 01 00 26.18 -07 42 02.4 V 033
2021-09-08 23:47:39 C 01 00 26.20 -07 41 49.0 V 033
2021-09-08 23:49:24 C 01 00 26.25 -07 41 35.6 V 033
2021-09-08 23:51:31 C 01 00 26.25 -07 41 13.8 V L01
2021-09-08 23:54:44 C 01 00 26.33 -07 40 48.5 V L01
2021-09-08 23:57:57 C 01 00 26.37 -07 40 23.3 V L01
2021-09-09 00:05:00 C 01 00 26.54 -07 39 29.0 V L01
2021-09-09 00:09:09 C 01 00 26.58 -07 38 56.8 V L01
2021-09-09 06:12:59 C 01 00 41.46 -06 51 13.8 u H21
2021-09-09 06:21:02 C 01 00 41.59 -06 50 10.1 u H21
2021-09-09 06:30:09 C 01 00 41.75 -06 48 57.8 u H21
2021-09-09 12:29:33 C 01 00 53.349 -06 00 20.45 U F51
2021-09-09 12:45:00 C 01 00 53.493 -05 58 14.66 U F51
2021-09-12 21:37:37 C 01 04 04.75 +06 42 15.5 V 033
2021-09-12 21:38:46 C 01 04 04.77 +06 42 28.1 V 033
2021-09-12 21:39:56 C 01 04 04.81 +06 42 40.5 V 033