2021 TS4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4703930000
Semi-major axis (a)1.8645843000 AU
Inclination (i)6.72493000°
Long. of Asc. Node (Ω)11.60544000°
Arg. of Perihelion (ω)340.43192000°
Mean Anomaly (M)229.71007000°
Mean Motion (n)0.3871070200°/day
Perihelion dist (q)0.98749690 AU
Aphelion dist (Q)2.74167170 AU
Orbital Period2.54608580 yr
Physical Parameters
H (abs. magnitude)27.91
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.620″
Uncertainty7
Orbit TypeApollo
MOID0.002954 AU
Observations Used29
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-10-11
Observations (31)
Date Type RA Dec Mag Band Observatory
2021-10-07 03:45:17 C 22 57 31.83 +14 43 06.1 V G96
2021-10-07 03:53:27 C 22 57 50.35 +14 48 31.7 V G96
2021-10-07 04:01:37 C 22 58 08.89 +14 53 56.7 V G96
2021-10-07 04:09:46 C 22 58 27.27 +14 59 18.6 V G96
2021-10-07 05:26:29 C 23 01 18.92 +15 49 12.9 V V06
2021-10-07 05:27:22 C 23 01 20.89 +15 49 46.8 V V06
2021-10-07 05:28:15 C 23 01 22.87 +15 50 21.2 V V06
2021-10-07 05:29:09 C 23 01 24.83 +15 50 55.0 V V06
2021-10-07 07:20:05 C 23 05 29.91 +17 00 23.8 V V06
2021-10-07 07:21:03 C 23 05 32.05 +17 00 59.2 V V06
2021-10-07 07:22:01 C 23 05 34.19 +17 01 34.8 V V06
2021-10-07 18:32:55 C 23 31 12.89 +23 08 37.0 V A17
2021-10-07 18:42:38 C 23 31 32.27 +23 13 27.1 V A17
2021-10-07 18:45:24 C 23 31 43.95 +23 15 49.8 V B49
2021-10-07 18:49:29 C 23 31 52.09 +23 17 51.8 V B49
2021-10-07 18:49:45 C 23 31 52.04 +23 17 24.1 V I93
2021-10-07 18:54:25 C 23 32 01.40 +23 19 42.9 V I93
2021-10-07 18:57:31 C 23 32 02.02 +23 20 49.4 V A17
2021-10-07 18:59:04 C 23 32 10.67 +23 22 01.7 V I93
2021-10-07 19:41:54 C 23 33 33.02 +23 41 52.7 V J95
2021-10-07 19:45:43 C 23 33 40.56 +23 43 44.1 V J95
2021-10-07 20:19:23 C 23 34 46.62 +23 59 54.1 V J95
2021-10-07 20:31:01 C 23 34 59.86 +24 06 07.7 V G02
2021-10-07 20:35:55 C 23 35 20.85 +24 09 02.5 X 958
2021-10-07 20:37:33 C 23 35 12.48 +24 09 12.3 V G02
2021-10-07 20:40:30 C 23 35 29.64 +24 11 12.6 X 958
2021-10-07 20:44:07 C 23 35 25.00 +24 12 16.3 V G02
2021-10-07 20:45:09 C 23 35 38.62 +24 13 24.9 X 958
2021-10-11 11:19:43 C 01 24 03.95 +41 55 00.0 V 291
2021-10-11 11:23:34 C 01 24 06.50 +41 55 14.7 V 291
2021-10-11 11:27:29 C 01 24 09.14 +41 55 29.5 V 291