2021 TR4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2078976000
Semi-major axis (a)1.0953593000 AU
Inclination (i)18.23474000°
Long. of Asc. Node (Ω)193.45123000°
Arg. of Perihelion (ω)101.91413000°
Mean Anomaly (M)270.66248000°
Mean Motion (n)0.8597440100°/day
Perihelion dist (q)0.86763670 AU
Aphelion dist (Q)1.32308190 AU
Orbital Period1.14639660 yr
Physical Parameters
H (abs. magnitude)27.80
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.780″
Uncertainty6
Orbit TypeApollo
MOID0.003020 AU
Observations Used24
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-10-07
Observations (24)
Date Type RA Dec Mag Band Observatory
2021-10-06 14:25:06 C 02 13 12.58 +19 16 11.7 X 381
2021-10-06 14:25:11 C 02 13 12.49 +19 15 57.0 X 381
2021-10-06 14:28:47 C 02 13 11.34 +19 06 22.0 X 381
2021-10-06 14:28:52 C 02 13 11.34 +19 06 07.6 X 381
2021-10-06 15:57:37 C 02 12 41.29 +15 15 28.2 X 381
2021-10-06 15:57:46 C 02 12 41.24 +15 15 05.6 X 381
2021-10-06 17:22:57 C 02 12 16.93 +11 47 10.6 q 900
2021-10-06 17:24:50 C 02 12 16.39 +11 42 44.9 q 900
2021-10-06 17:26:42 C 02 12 15.85 +11 38 19.6 q 900
2021-10-06 17:56:25 C 02 13 11.09 +10 23 42.8 V N82
2021-10-06 18:00:33 C 02 13 10.05 +10 14 15.7 V N82
2021-10-06 21:53:50 C 02 13 45.72 +02 13 18.6 X 958
2021-10-06 21:58:53 C 02 13 44.95 +02 03 55.9 X 958
2021-10-06 22:03:59 C 02 13 44.06 +01 54 30.2 X 958
2021-10-06 22:23:11 C 02 13 39.23 +01 19 12.2 V I93
2021-10-06 22:25:30 C 02 13 38.80 +01 15 01.7 V I93
2021-10-06 22:27:57 C 02 13 38.33 +01 10 36.5 V I93
2021-10-06 22:29:21 C 02 13 38.05 +01 08 05.5 V I93
2021-10-06 23:04:20 C 02 13 30.38 +00 06 52.1 V B49
2021-10-06 23:06:45 C 02 13 29.72 +00 02 39.5 V B49
2021-10-07 13:11:14 C 02 13 55.15 -17 04 33.3 r P93
2021-10-07 13:13:07 C 02 13 54.86 -17 06 07.8 r P93
2021-10-07 13:16:52 C 02 13 54.30 -17 09 16.1 r P93
2021-10-07 13:18:44 C 02 13 54.01 -17 10 49.7 r P93