IAA RAS IAA Minor Planet Database

2021 ET1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5905632555 ± 1.88e-04
Semi-major axis (a)2.4612821282 AU ± 1.13e-03
Inclination (i)8.42364555° ± 1.97e-03
Long. of Asc. Node (Ω)353.62578229° ± 5.80e-04
Arg. of Perihelion (ω)150.39770910° ± 3.74e-04
Mean Anomaly (M)84.66660322° ± 3.06e-01
Mean Motion (n)0.2552526025°/day ± 1.75e-04
Perihelion dist (q)1.00773934 AU ± 6.54e-04
Aphelion dist (Q)3.91482491 AU ± 1.85e-03
Orbital Period3.86137604 yr ± 2.65e-03
Physical Parameters
H (abs. magnitude)24.59
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.284″
Uncertainty3
Orbit TypeApollo
MOID0.045935 AU
Observations Used74
Oppositions1
Arc Total2021-2021
First Observation Used2021-03-06
Last Observation Used2021-03-23
Observations (76)
Date Type RA Dec Mag Band Observatory
2021-03-06 11:25:32 C 13 47 52.58 +07 20 31.5 – V G96
2021-03-06 11:33:02 C 13 47 52.05 +07 19 07.2 – V G96
2021-03-06 11:40:34 C 13 47 51.54 +07 17 42.1 – V G96
2021-03-06 11:48:05 C 13 47 51.07 +07 16 18.0 – V G96
2021-03-06 12:31:25 C 13 47 48.29 +07 08 12.0 – V I52
2021-03-06 12:33:04 C 13 47 48.19 +07 07 53.6 – V I52
2021-03-06 12:34:43 C 13 47 48.07 +07 07 35.2 – V I52
2021-03-06 12:36:21 C 13 47 47.99 +07 07 17.1 – V I52
2021-03-06 12:46:38 C 13 47 47.36 +07 05 21.9 – V G96
2021-03-06 12:47:03 C 13 47 47.31 +07 05 17.2 – V G96
2021-03-06 12:47:28 C 13 47 47.30 +07 05 12.4 – V G96
2021-03-06 12:47:53 C 13 47 47.28 +07 05 07.5 – V G96
2021-03-06 21:30:38 C 13 47 36.30 +05 29 28.1 – V N88
2021-03-06 21:31:09 C 13 47 36.31 +05 29 22.4 – V N88
2021-03-06 21:32:13 C 13 47 36.26 +05 29 11.3 – V N88
2021-03-06 21:32:42 C 13 47 36.22 +05 29 06.8 – V N88
2021-03-06 22:34:33 C 13 47 40.59 +05 17 45.1 – V 033
2021-03-06 22:35:48 C 13 47 40.54 +05 17 32.2 – V 033
2021-03-06 22:37:02 C 13 47 40.49 +05 17 18.8 – V 033
2021-03-06 22:38:21 C 13 47 40.42 +05 17 05.2 – V 033
2021-03-06 22:39:20 C 13 47 40.48 +05 17 00.7 – V 246
2021-03-06 22:40:16 C 13 47 40.35 +05 16 49.3 – V 246
2021-03-06 22:41:10 C 13 47 40.29 +05 16 39.4 – V 246
2021-03-06 22:42:56 C 13 47 40.26 +05 16 21.3 – V 246
2021-03-06 22:43:33 C 13 47 40.14 +05 16 14.4 – V 246
2021-03-06 22:45:02 C 13 47 40.11 +05 15 59.6 – V 246
2021-03-06 22:46:01 C 13 47 40.15 +05 15 47.7 – V 246
2021-03-06 22:46:44 C 13 47 40.02 +05 15 40.6 – V 246
2021-03-07 01:35:32 C 13 47 30.55 +04 46 03.2 – V L01
2021-03-07 01:38:10 C 13 47 30.39 +04 45 35.7 – V L01
2021-03-07 01:40:47 C 13 47 30.25 +04 45 08.2 – V L01
2021-03-07 01:43:25 C 13 47 30.08 +04 44 40.5 – V L01
2021-03-07 01:46:14 C 13 47 29.91 +04 44 10.9 – V L01
2021-03-07 03:17:16 C 13 47 24.97 +04 28 15.5 – V 204
2021-03-07 03:35:26 C 13 47 23.88 +04 25 05.7 – V 204
2021-03-07 03:48:06 C 13 47 23.08 +04 22 43.4 – V 033
2021-03-07 03:49:41 C 13 47 23.00 +04 22 27.0 – V 033
2021-03-07 03:51:15 C 13 47 22.91 +04 22 10.5 – V 033
2021-03-07 07:14:31 C 13 47 22.67 +03 47 34.0 – u H21
2021-03-07 07:18:42 C 13 47 22.41 +03 46 51.1 – u H21
2021-03-07 07:22:54 C 13 47 22.15 +03 46 08.3 – u H21
2021-03-07 11:18:24 C 13 47 09.91 +03 06 32.7 – V G96
2021-03-07 11:25:44 C 13 47 09.44 +03 05 19.0 – V G96
2021-03-07 11:33:07 C 13 47 08.95 +03 04 04.8 – V G96
2021-03-07 11:40:28 C 13 47 08.47 +03 02 51.0 – V G96
2021-03-08 00:28:09 C 13 46 50.61 +00 57 38.4 – V 246
2021-03-08 00:28:34 C 13 46 50.58 +00 57 34.4 – V 246
2021-03-08 00:28:57 C 13 46 50.54 +00 57 29.3 – V 246
2021-03-08 00:30:29 C 13 46 50.49 +00 57 15.2 – V 246
2021-03-08 00:30:56 C 13 46 50.46 +00 57 11.8 – V 246