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
2021-10-16 05:31:47 C 03 20 31.49 +06 50 20.8 u 807
2021-10-16 07:14:32 C 03 20 32.02 +06 34 56.5 V 703
2021-10-16 07:23:59 C 03 20 31.73 +06 33 42.4 V 703
2021-10-16 07:31:39 C 03 20 31.45 +06 32 41.9 V 703
2021-10-16 07:39:19 C 03 20 31.23 +06 31 42.0 V 703
2021-10-24 03:40:07 C 03 18 03.01 -08 26 58.6 u 807
2021-10-24 03:44:04 C 03 18 02.93 -08 27 08.9 u 807
2021-10-24 03:48:03 C 03 18 02.81 -08 27 20.2 u 807
2021-10-26 04:00:10 C 03 17 13.83 -10 26 43.7 u 807
2021-10-26 04:04:08 C 03 17 13.70 -10 26 52.5 u 807
2021-10-26 04:08:04 C 03 17 13.57 -10 27 00.9 u 807
2021-10-28 08:48:58 C 03 16 16.32 -12 10 22.4 V I52
2021-10-28 08:51:04 C 03 16 16.25 -12 10 26.1 V I52
2021-10-28 08:54:07 C 03 16 16.12 -12 10 31.3 V I52
2021-10-28 08:56:13 C 03 16 16.12 -12 10 34.8 V I52
2021-10-31 11:01:40 C 03 14 56.794 -13 57 24.20 U F51
2021-10-31 11:18:59 C 03 14 56.257 -13 57 44.92 U F51
2021-10-31 11:53:39 C 03 14 55.193 -13 58 26.30 U F51
2021-11-06 12:37:38 C 03 12 25.34 -16 00 57.2 V 474
2021-11-06 12:42:42 C 03 12 25.21 -16 01 00.1 V 474
2021-11-06 12:47:46 C 03 12 25.11 -16 01 02.9 V 474
2021-11-06 12:52:50 C 03 12 24.98 -16 01 05.9 V 474
2021-11-07 10:38:01 C 03 12 04.107 -16 13 06.05 U F52
2021-11-07 10:53:46 C 03 12 03.682 -16 13 13.77 U F52
2021-11-07 11:09:31 C 03 12 03.284 -16 13 21.46 U F52
2021-11-07 11:25:21 C 03 12 02.884 -16 13 28.98 U F52
2021-11-10 08:45:37 C 03 11 01.17 -16 40 08.5 V V06
2021-11-10 08:55:55 C 03 11 00.92 -16 40 11.8 V V06
2021-11-10 09:06:12 C 03 11 00.69 -16 40 14.8 V V06