2021 SE2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4694556747 ± 1.30e-03
Semi-major axis (a)2.1584286545 AU ± 6.05e-03
Inclination (i)7.62288830° ± 9.89e-03
Long. of Asc. Node (Ω)333.68221461° ± 1.74e-02
Arg. of Perihelion (ω)351.01592108° ± 2.16e-02
Mean Anomaly (M)121.42340652° ± 2.01e+00
Mean Motion (n)0.3108176906°/day ± 1.31e-03
Perihelion dist (q)1.14514207 AU ± 4.26e-03
Aphelion dist (Q)3.17171523 AU ± 9.32e-03
Orbital Period3.17107524 yr ± 1.33e-02
Physical Parameters
H (abs. magnitude)22.12
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.331″
Uncertainty4
Orbit TypeAmor
MOID0.132736 AU
Observations Used27
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-28
Last Observation Used2021-10-09
Observations (27)
Date Type RA Dec Mag Band Observatory
2021-09-28 07:01:56 C 21 13 04.516 -02 10 00.27 U F51
2021-09-28 07:20:12 C 21 13 07.049 -02 09 32.46 U F51
2021-09-28 07:38:28 C 21 13 09.570 -02 09 04.68 U F51
2021-09-28 07:56:42 C 21 13 12.112 -02 08 36.62 U F51
2021-09-29 02:08:44 C 21 15 53.13 -01 41 18.5 u H21
2021-09-29 02:24:19 C 21 15 55.32 -01 40 55.7 u H21
2021-09-29 03:48:53 C 21 16 07.75 -01 38 45.4 V V06
2021-09-29 03:49:31 C 21 16 07.83 -01 38 44.5 V V06
2021-09-29 03:50:10 C 21 16 07.87 -01 38 44.1 V V06
2021-09-29 04:17:32 C 21 16 11.70 -01 38 03.1 o 691
2021-09-29 04:28:43 C 21 16 13.24 -01 37 47.0 o 691
2021-09-29 04:39:51 C 21 16 14.79 -01 37 29.6 o 691
2021-09-29 20:27:26 C 21 18 32.56 -01 14 20.6 V 104
2021-09-29 20:50:56 C 21 18 35.83 -01 13 45.8 V 104
2021-09-30 03:05:18 C 21 19 30.11 -01 04 42.6 u H21
2021-09-30 03:21:39 C 21 19 32.33 -01 04 18.5 u H21
2021-09-30 03:24:35 C 21 19 32.72 -01 04 14.7 u H21
2021-09-30 08:21:16 C 21 20 15.178 -00 56 58.41 U F51
2021-09-30 09:04:12 C 21 20 21.022 -00 55 56.86 U F51
2021-09-30 09:27:07 C 21 20 24.146 -00 55 24.14 U F51
2021-10-07 04:29:29 C 21 42 54.29 +02 34 10.3 V V06
2021-10-07 04:30:38 C 21 42 54.45 +02 34 11.6 V V06
2021-10-07 04:31:46 C 21 42 54.60 +02 34 13.0 V V06
2021-10-09 03:32:42 C 21 49 04.31 +03 26 25.8 V G96
2021-10-09 03:40:56 C 21 49 05.31 +03 26 33.9 V G96
2021-10-09 03:49:09 C 21 49 06.30 +03 26 42.9 V G96
2021-10-09 03:57:23 C 21 49 07.32 +03 26 51.8 V G96