IAA RAS IAA Minor Planet Database

2021 TH15

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5629609558 ± 1.18e-04
Semi-major axis (a)2.0277127363 AU ± 5.06e-04
Inclination (i)4.88066629° ± 7.61e-04
Long. of Asc. Node (Ω)198.17115586° ± 8.34e-04
Arg. of Perihelion (ω)132.93493684° ± 7.61e-04
Mean Anomaly (M)163.99376706° ± 2.01e-01
Mean Motion (n)0.3413521422°/day ± 1.28e-04
Perihelion dist (q)0.88618964 AU ± 3.26e-04
Aphelion dist (Q)3.16923584 AU ± 8.27e-04
Orbital Period2.88741789 yr ± 1.08e-03
Physical Parameters
H (abs. magnitude)28.88
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.133″
Uncertainty3
Orbit TypeApollo
MOID0.000349 AU
Observations Used13
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-13
Last Observation Used2021-10-15
Observations (15)
Date Type RA Dec Mag Band Observatory
2021-10-13 11:16:58 C 02 28 13.994 +03 11 29.14 – U F51
2021-10-13 11:33:43 C 02 28 20.784 +03 11 16.35 – U F51
2021-10-13 11:50:32 C 02 28 27.571 +03 11 03.59 – U F51
2021-10-13 13:50:45 C 02 29 15.354 +03 09 31.45 – V F51
2021-10-13 13:51:41 C 02 29 15.712 +03 09 30.57 – V F51
2021-10-14 04:20:28 C 02 35 34.93 +03 07 25.5 – u 807
2021-10-14 04:28:18 C 02 35 36.78 +03 07 21.7 – u 807
2021-10-14 04:36:16 C 02 35 38.47 +03 07 19.2 – u 807
2021-10-14 06:55:57 C 02 36 07.54 +03 06 07.7 – V 807
2021-10-14 07:01:16 C 02 36 08.63 +03 06 05.0 – V 807
2021-10-14 07:06:35 C 02 36 09.72 +03 06 02.2 – V 807
2021-10-14 13:06:10 C 02 37 46.954 +02 58 08.00 – V F51
2021-10-14 13:12:36 C 02 37 48.027 +02 58 05.68 – V F51
2021-10-15 08:55:09 C 02 41 55.52 +02 51 52.1 – V 695
2021-10-15 09:02:22 C 02 41 56.16 +02 51 51.0 – V 695