2021 PL4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2291999623 ± 3.32e-04
Semi-major axis (a)1.3660977192 AU ± 6.54e-04
Inclination (i)6.85735262° ± 7.74e-03
Long. of Asc. Node (Ω)313.97318131° ± 2.32e-04
Arg. of Perihelion (ω)17.18723588° ± 1.54e-02
Mean Anomaly (M)236.86365580° ± 6.84e-01
Mean Motion (n)0.6172905476°/day ± 4.43e-04
Perihelion dist (q)1.05298817 AU ± 6.78e-04
Aphelion dist (Q)1.67920726 AU ± 9.23e-04
Orbital Period1.59669751 yr ± 1.15e-03
Physical Parameters
H (abs. magnitude)27.62
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.267″
Uncertainty3
Orbit TypeAmor
MOID0.043576 AU
Observations Used12
Oppositions1
Arc Total2021-2021
First Observation Used2021-08-08
Last Observation Used2021-08-10
Observations (12)
Date Type RA Dec Mag Band Observatory
2021-08-08 08:57:41 C 21 01 10.898 -12 22 54.20 U F51
2021-08-08 09:14:54 C 21 01 12.368 -12 20 39.62 U F51
2021-08-08 09:32:10 C 21 01 13.853 -12 18 23.15 U F51
2021-08-08 09:49:22 C 21 01 15.293 -12 16 08.38 U F51
2021-08-08 12:45:29 C 21 01 30.533 -11 52 44.30 V F51
2021-08-08 12:46:25 C 21 01 30.619 -11 52 36.90 V F51
2021-08-09 11:31:55 C 21 04 40.956 -08 50 04.16 V 568
2021-08-09 11:33:20 C 21 04 41.079 -08 49 52.63 V 568
2021-08-09 11:34:45 C 21 04 41.201 -08 49 41.23 V 568
2021-08-10 04:59:20 C 21 07 10.96 -06 28 49.1 u H21
2021-08-10 05:09:54 C 21 07 11.96 -06 27 22.8 u H21
2021-08-10 05:21:11 C 21 07 13.04 -06 25 51.2 u H21