2021 ET3

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5605696789 ± 1.27e-04
Semi-major axis (a)1.5235354486 AU ± 3.26e-04
Inclination (i)6.36996806° ± 1.24e-03
Long. of Asc. Node (Ω)356.65510521° ± 9.19e-05
Arg. of Perihelion (ω)261.94852471° ± 1.55e-04
Mean Anomaly (M)150.95181996° ± 2.78e-01
Mean Motion (n)0.5241232566°/day ± 1.68e-04
Perihelion dist (q)0.66948767 AU ± 2.40e-04
Aphelion dist (Q)2.37758323 AU ± 5.44e-04
Orbital Period1.88052385 yr ± 6.04e-04
Physical Parameters
H (abs. magnitude)26.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.350″
Uncertainty3
Orbit TypeApollo
MOID0.005400 AU
Observations Used36
Oppositions1
Arc Total2021-2021
First Observation Used2021-03-11
Last Observation Used2021-03-14
Observations (36)
Date Type RA Dec Mag Band Observatory
2021-03-11 06:49:43 C 11 52 09.50 +23 21 51.5 V G96
2021-03-11 06:57:08 C 11 52 09.17 +23 22 43.3 V G96
2021-03-11 07:04:37 C 11 52 08.85 +23 23 34.9 V G96
2021-03-11 07:12:02 C 11 52 08.49 +23 24 26.8 V G96
2021-03-11 10:04:33 C 11 52 00.70 +23 44 47.9 o 291
2021-03-11 10:09:36 C 11 52 00.54 +23 45 24.0 o 291
2021-03-11 10:14:39 C 11 52 00.32 +23 46 00.5 o 291
2021-03-11 10:53:05 C 11 51 58.82 +23 50 33.2 V I52
2021-03-11 10:54:30 C 11 51 58.80 +23 50 43.6 V I52
2021-03-11 10:55:55 C 11 51 58.72 +23 50 53.5 V I52
2021-03-11 21:44:34 C 11 52 34.15 +25 23 01.6 V 033
2021-03-11 21:45:58 C 11 52 34.11 +25 23 16.3 V 033
2021-03-11 21:47:23 C 11 52 34.09 +25 23 30.7 V 033
2021-03-11 22:10:39 C 11 52 36.27 +25 27 15.3 V J95
2021-03-11 22:14:33 C 11 52 36.16 +25 27 54.5 V J95
2021-03-11 22:18:28 C 11 52 36.13 +25 28 34.9 V J95
2021-03-11 22:22:23 C 11 52 36.01 +25 29 15.7 V J95
2021-03-12 19:09:56 C 11 53 42.84 +30 23 17.0 V 033
2021-03-12 19:10:50 C 11 53 42.88 +30 23 35.9 V 033
2021-03-12 19:11:45 C 11 53 42.91 +30 23 54.6 V 033
2021-03-12 23:19:26 C 11 53 45.07 +31 55 28.3 V 204
2021-03-12 23:28:50 C 11 53 44.76 +31 59 11.0 V 204
2021-03-12 23:38:14 C 11 53 44.46 +32 02 55.3 V 204
2021-03-13 03:53:45 C 11 53 41.92 +33 52 05.3 V 033
2021-03-13 03:54:25 C 11 53 41.91 +33 52 23.2 V 033
2021-03-13 03:55:04 C 11 53 41.94 +33 52 41.8 V 033
2021-03-13 19:01:18 C 11 57 26.85 +44 43 20.1 V 033
2021-03-13 19:01:43 C 11 57 26.96 +44 43 47.5 V 033
2021-03-13 19:02:09 C 11 57 27.04 +44 44 13.9 V 033
2021-03-13 20:53:17 C 11 58 02.49 +46 51 30.0 V J95
2021-03-13 20:54:46 C 11 58 02.94 +46 53 20.0 V J95
2021-03-13 20:56:20 C 11 58 03.39 +46 55 13.7 V J95
2021-03-13 20:57:56 C 11 58 03.84 +46 57 12.6 V J95
2021-03-14 02:40:12 C 11 59 36.78 +55 21 31.5 V 033
2021-03-14 02:40:31 C 11 59 36.93 +55 22 06.2 V 033
2021-03-14 02:40:56 C 11 59 37.14 +55 22 49.1 V 033