2021 TC4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.0575302663 ± 1.78e-05
Semi-major axis (a)0.9847969666 AU ± 6.88e-06
Inclination (i)9.92599601° ± 4.47e-03
Long. of Asc. Node (Ω)195.53364408° ± 1.85e-04
Arg. of Perihelion (ω)22.25532803° ± 1.18e-02
Mean Anomaly (M)229.51364787° ± 2.99e-02
Mean Motion (n)1.0085378990°/day ± 1.06e-05
Perihelion dist (q)0.92814133 AU ± 1.87e-05
Aphelion dist (Q)1.04145260 AU ± 1.90e-05
Orbital Period0.97728235 yr ± 1.02e-05
Physical Parameters
H (abs. magnitude)26.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.276″
Uncertainty2
Orbit TypeAten
MOID0.035108 AU
Observations Used31
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-04
Last Observation Used2021-10-17
Observations (35)
Date Type RA Dec Mag Band Observatory
2021-10-04 06:02:29 C 23 33 32.102 +24 20 07.71 V F51
2021-10-04 06:21:15 C 23 33 33.813 +24 16 37.90 V F51
2021-10-04 06:39:59 C 23 33 35.458 +24 13 08.30 V F51
2021-10-06 10:22:57 C 23 40 19.761 +14 15 33.25 U F51
2021-10-06 10:40:02 C 23 40 20.953 +14 12 14.96 V F51
2021-10-06 10:56:05 C 23 40 22.099 +14 09 07.22 U F51
2021-10-06 11:12:35 C 23 40 23.296 +14 05 56.33 V F51
2021-10-06 13:49:30 C 23 40 37.371 +13 35 22.79 V F51
2021-10-06 13:50:26 C 23 40 37.466 +13 35 12.53 V F51
2021-10-06 19:05:08 C 23 41 26.22 +12 34 43.4 V N51
2021-10-06 19:14:24 C 23 41 26.94 +12 32 56.6 V N51
2021-10-06 20:03:08 C 23 41 46.25 +12 22 51.7 V I93
2021-10-06 20:08:18 C 23 41 47.64 +12 22 05.4 X Z41
2021-10-06 20:08:31 C 23 41 46.70 +12 21 50.6 V I93
2021-10-06 20:14:02 C 23 41 47.18 +12 20 48.2 V I93
2021-10-06 20:18:09 C 23 41 48.56 +12 20 13.3 X Z41
2021-10-06 20:19:17 C 23 41 47.57 +12 19 59.5 V B37
2021-10-06 20:27:57 C 23 41 49.39 +12 18 22.3 X Z41
2021-10-06 20:29:51 C 23 41 48.46 +12 17 58.5 V B37
2021-10-06 20:40:26 C 23 41 49.32 +12 15 58.1 V B37
2021-10-06 20:58:20 C 23 41 50.71 +12 12 34.2 V B37
2021-10-06 21:01:11 C 23 41 50.96 +12 12 02.1 V B37
2021-10-06 21:30:54 C 23 41 53.40 +12 06 24.3 V B49
2021-10-06 21:32:48 C 23 41 53.51 +12 06 02.6 V B49
2021-10-07 04:14:43 C 23 42 47.30 +10 50 10.4 V G96
2021-10-07 04:22:11 C 23 42 47.87 +10 48 45.7 V G96
2021-10-07 04:29:39 C 23 42 48.42 +10 47 21.0 V G96
2021-10-07 04:37:07 C 23 42 48.94 +10 45 56.4 V G96
2021-10-07 05:57:37 C 23 42 54.57 +10 30 45.6 V V06
2021-10-07 05:57:54 C 23 42 54.58 +10 30 42.6 V V06
2021-10-07 05:58:10 C 23 42 54.59 +10 30 39.3 V V06
2021-10-07 05:58:27 C 23 42 54.62 +10 30 35.8 V V06
2021-10-17 02:45:51 C 00 08 19.05 -23 16 16.5 V 807
2021-10-17 02:54:47 C 00 08 19.48 -23 17 06.0 V 807
2021-10-17 03:03:43 C 00 08 19.92 -23 17 55.7 V 807