2021 TH12

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4852844843 ± 6.12e-05
Semi-major axis (a)1.8260037268 AU ± 2.08e-04
Inclination (i)16.37051249° ± 1.42e-03
Long. of Asc. Node (Ω)201.78922709° ± 1.40e-04
Arg. of Perihelion (ω)132.10164535° ± 1.96e-04
Mean Anomaly (M)254.60219148° ± 1.06e-01
Mean Motion (n)0.3994475730°/day ± 6.83e-05
Perihelion dist (q)0.93987245 AU ± 1.55e-04
Aphelion dist (Q)2.71213500 AU ± 3.29e-04
Orbital Period2.46747346 yr ± 4.22e-04
Physical Parameters
H (abs. magnitude)22.87
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.312″
Uncertainty3
Orbit TypeApollo
MOID0.038696 AU
Observations Used176
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-11
Last Observation Used2021-11-10
Observations (179)
Date Type RA Dec Mag Band Observatory
2021-10-11 07:16:09 C 03 20 54.47 +29 58 04.2 V 703
2021-10-11 07:23:39 C 03 20 54.18 +29 56 02.7 V 703
2021-10-11 07:31:10 C 03 20 53.94 +29 54 01.3 V 703
2021-10-11 07:38:40 C 03 20 53.69 +29 51 59.3 V 703
2021-10-11 08:20:45 C 03 20 51.26 +29 40 37.3 V H06
2021-10-11 08:23:01 C 03 20 51.21 +29 40 00.6 V H06
2021-10-11 08:25:08 C 03 20 51.16 +29 39 26.2 V H06
2021-10-11 09:12:49 C 03 20 51.77 +29 25 50.1 X U55
2021-10-11 09:35:25 C 03 20 51.25 +29 19 38.9 X U55
2021-10-11 09:53:26 C 03 20 48.69 +29 15 36.6 V 703
2021-10-11 09:53:41 C 03 20 48.69 +29 15 32.5 V 703
2021-10-11 09:56:00 C 03 20 48.60 +29 14 54.8 V 703
2021-10-11 09:58:21 C 03 20 48.49 +29 14 16.6 V 703
2021-10-11 20:08:00 C 03 21 00.06 +26 33 39.0 X 595
2021-10-11 20:11:31 C 03 21 00.04 +26 32 45.5 X 595
2021-10-11 20:18:35 C 03 20 59.98 +26 30 59.8 X 595
2021-10-11 20:22:50 C 03 20 59.96 +26 29 55.5 X 595
2021-10-11 20:50:54 C 03 21 00.21 +26 23 04.9 Z L74
2021-10-11 20:51:13 C 03 21 00.21 +26 23 00.0 Z L74
2021-10-11 20:57:44 C 03 20 59.98 +26 21 13.0 V K83
2021-10-11 21:01:55 C 03 20 59.93 +26 20 10.3 V K83
2021-10-11 21:06:05 C 03 20 59.85 +26 19 07.3 V 104
2021-10-11 21:06:07 C 03 20 59.87 +26 19 07.7 V K83
2021-10-11 21:06:49 C 03 20 59.89 +26 18 54.3 V G15
2021-10-11 21:14:11 C 03 20 59.79 +26 17 03.7 V G15
2021-10-11 21:18:34 C 03 20 59.69 +26 16 00.6 V 104
2021-10-11 21:21:32 C 03 20 59.65 +26 15 13.8 V G15
2021-10-11 21:27:12 C 03 20 59.39 +26 13 29.9 q J69
2021-10-11 21:32:26 C 03 21 00.27 +26 12 25.3 X 958
2021-10-11 21:35:07 C 03 20 59.31 +26 11 31.8 q J69
2021-10-11 21:37:12 C 03 21 00.22 +26 11 13.9 X 958
2021-10-11 21:41:58 C 03 21 00.14 +26 10 03.1 X 958
2021-10-11 21:43:02 C 03 20 59.23 +26 09 32.7 q J69
2021-10-11 21:47:02 C 03 20 59.04 +26 08 33.0 V Z80
2021-10-11 21:50:58 C 03 20 59.12 +26 07 34.4 q J69
2021-10-11 21:54:03 C 03 20 58.96 +26 06 47.5 V Z80
2021-10-11 22:01:01 C 03 20 58.89 +26 05 04.4 V Z80
2021-10-11 22:07:41 C 03 20 58.37 +26 03 45.6 V L01
2021-10-11 22:09:11 C 03 20 58.34 +26 03 22.9 V L01
2021-10-11 22:10:41 C 03 20 58.31 +26 03 00.7 V L01
2021-10-11 22:12:10 C 03 20 58.27 +26 02 38.3 V L01
2021-10-11 22:13:40 C 03 20 58.23 +26 02 16.2 V L01
2021-10-11 22:21:00 C 03 20 59.15 +26 00 10.4 X Z43
2021-10-11 22:28:21 C 03 20 59.29 +25 58 30.3 V I93
2021-10-11 22:30:54 C 03 20 58.99 +25 57 42.9 X Z43
2021-10-11 22:31:17 C 03 20 59.23 +25 57 46.6 V I93
2021-10-11 22:34:18 C 03 20 59.18 +25 57 01.9 V I93
2021-10-11 22:38:49 C 03 20 58.57 +25 55 59.0 Z C95
2021-10-11 22:40:51 C 03 20 58.82 +25 55 14.7 X Z43
2021-10-11 22:41:45 C 03 20 58.55 +25 55 15.3 Z C95