2021 RE4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4561613951 ± 3.08e-04
Semi-major axis (a)2.0905401827 AU ± 1.34e-03
Inclination (i)6.93729922° ± 3.51e-03
Long. of Asc. Node (Ω)185.53701052° ± 1.38e-04
Arg. of Perihelion (ω)157.43900973° ± 3.43e-03
Mean Anomaly (M)140.99805454° ± 4.85e-01
Mean Motion (n)0.3260802511°/day ± 3.13e-04
Perihelion dist (q)1.13691646 AU ± 9.71e-04
Aphelion dist (Q)3.04416391 AU ± 2.05e-03
Orbital Period3.02264942 yr ± 2.90e-03
Physical Parameters
H (abs. magnitude)24.45
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.141″
Uncertainty3
Orbit TypeAmor
MOID0.135390 AU
Observations Used26
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-08
Last Observation Used2021-10-06
Observations (26)
Date Type RA Dec Mag Band Observatory
2021-09-08 04:46:45 C 22 13 33.39 +11 19 52.3 V G96
2021-09-08 04:54:15 C 22 13 34.87 +11 19 43.3 V G96
2021-09-08 05:01:46 C 22 13 36.35 +11 19 34.2 V G96
2021-09-08 05:09:17 C 22 13 37.83 +11 19 25.5 V G96
2021-09-08 06:49:46 C 22 13 57.45 +11 17 22.6 V G96
2021-09-08 06:50:37 C 22 13 57.60 +11 17 21.3 V G96
2021-09-08 20:04:52 C 22 16 47.66 +11 00 37.5 V 033
2021-09-08 20:07:57 C 22 16 48.26 +11 00 33.7 V 033
2021-09-08 20:11:02 C 22 16 48.89 +11 00 29.9 V 033
2021-09-08 20:14:15 C 22 16 49.54 +11 00 26.0 V 033
2021-09-08 20:45:45 C 22 16 55.96 +10 59 52.4 V L01
2021-09-08 20:52:36 C 22 16 57.29 +10 59 43.8 V L01
2021-09-08 20:59:27 C 22 16 58.65 +10 59 34.8 V L01
2021-09-08 21:06:17 C 22 16 59.97 +10 59 26.2 V L01
2021-09-09 05:35:53 C 22 18 46.83 +10 48 49.5 u H21
2021-09-09 05:42:45 C 22 18 48.21 +10 48 40.4 u H21
2021-09-11 07:18:38 C 22 29 26.693 +09 44 03.97 U F52
2021-09-11 07:34:24 C 22 29 29.837 +09 43 43.19 U F52
2021-09-11 07:50:10 C 22 29 32.973 +09 43 22.15 U F52
2021-10-03 08:29:43 C 00 09 05.432 -01 49 29.28 U F52
2021-10-03 08:44:31 C 00 09 07.364 -01 49 43.79 U F52
2021-10-03 08:59:19 C 00 09 09.308 -01 49 58.27 U F52
2021-10-03 09:14:05 C 00 09 11.226 -01 50 12.83 U F52
2021-10-06 08:19:21 C 00 18 58.822 -02 54 54.41 U F51
2021-10-06 08:34:13 C 00 19 00.592 -02 55 07.22 U F51
2021-10-06 08:49:02 C 00 19 02.353 -02 55 19.37 U F51