IAA RAS IAA Minor Planet Database

2021 TH13

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2946028161 ± 1.48e-04
Semi-major axis (a)0.9652710354 AU ± 1.13e-05
Inclination (i)4.71663630° ± 2.81e-03
Long. of Asc. Node (Ω)23.84728821° ± 3.38e-04
Arg. of Perihelion (ω)113.41029427° ± 3.75e-03
Mean Anomaly (M)33.85448244° ± 1.20e-02
Mean Motion (n)1.0392938663°/day ± 1.83e-05
Perihelion dist (q)0.68089947 AU ± 1.43e-04
Aphelion dist (Q)1.24964260 AU ± 1.44e-04
Orbital Period0.94836149 yr ± 1.67e-05
Physical Parameters
H (abs. magnitude)28.14
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.298″
Uncertainty2
Orbit TypeAten
MOID0.000061 AU
Observations Used18
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-06
Last Observation Used2021-10-14
Observations (18)
Date Type RA Dec Mag Band Observatory
2021-10-06 13:58:01 C 02 27 22.931 -01 35 02.20 – V F51
2021-10-06 14:16:08 C 02 27 21.324 -01 35 08.05 – V F51
2021-10-06 14:34:15 C 02 27 19.737 -01 35 14.15 – V F51
2021-10-06 14:52:18 C 02 27 18.218 -01 35 20.45 – V F51
2021-10-13 09:36:26 C 02 02 44.920 -03 37 54.38 – U F52
2021-10-13 10:15:03 C 02 02 25.661 -03 39 03.82 – U F52
2021-10-13 10:34:18 C 02 02 15.857 -03 39 38.73 – U F52
2021-10-13 13:45:11 C 02 00 37.260 -03 45 25.32 – V F51
2021-10-13 13:46:07 C 02 00 36.784 -03 45 26.71 – V F51
2021-10-13 21:28:19 C 01 57 33.01 -04 03 42.4 – V L01
2021-10-13 21:32:48 C 01 57 30.44 -04 03 53.9 – V L01
2021-10-13 21:35:03 C 01 57 29.18 -04 03 58.1 – V L01
2021-10-13 21:37:17 C 01 57 27.90 -04 04 03.8 – V L01
2021-10-13 23:47:28 C 01 56 15.38 -04 08 57.1 – V I93
2021-10-13 23:53:01 C 01 56 11.97 -04 09 10.4 – V I93
2021-10-13 23:58:36 C 01 56 08.58 -04 09 23.4 – V I93
2021-10-14 00:02:46 C 01 56 02.62 -04 09 40.0 – V 204
2021-10-14 00:15:43 C 01 55 54.60 -04 10 10.3 – V 204