2021 TJ4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4590535217 ± 5.94e-06
Semi-major axis (a)2.0094913336 AU ± 2.40e-05
Inclination (i)9.00399793° ± 8.40e-05
Long. of Asc. Node (Ω)81.60930915° ± 3.15e-05
Arg. of Perihelion (ω)340.51124784° ± 2.05e-05
Mean Anomaly (M)142.88985752° ± 9.05e-03
Mean Motion (n)0.3460055539°/day ± 6.20e-06
Perihelion dist (q)1.08702726 AU ± 1.76e-05
Aphelion dist (Q)2.93195541 AU ± 3.70e-05
Orbital Period2.84858515 yr ± 5.10e-05
Physical Parameters
H (abs. magnitude)21.96
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.211″
Uncertainty1
Orbit TypeAmor
MOID0.108465 AU
Observations Used87
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-24
Last Observation Used2021-12-27
Observations (91)
Date Type RA Dec Mag Band Observatory
2021-09-24 10:55:43 C 01 18 40.441 -31 00 35.01 V F51
2021-09-24 11:11:32 C 01 18 40.689 -31 00 47.52 V F51
2021-09-24 11:27:19 C 01 18 40.956 -31 01 00.00 V F51
2021-10-03 10:17:46 C 01 23 31.802 -33 37 04.03 U F51
2021-10-03 10:31:41 C 01 23 31.956 -33 37 13.14 U F51
2021-10-03 10:45:38 C 01 23 32.096 -33 37 22.09 U F51
2021-10-03 10:59:33 C 01 23 32.230 -33 37 31.13 U F51
2021-10-04 06:44:23 C 01 23 54.87 -33 49 39.1 V 807
2021-10-04 06:49:42 C 01 23 54.93 -33 49 42.3 V 807
2021-10-04 06:55:01 C 01 23 54.99 -33 49 45.4 V 807
2021-10-06 09:11:21 C 01 24 54.781 -34 20 08.84 U F51
2021-10-06 09:25:20 C 01 24 54.914 -34 20 17.24 U F51
2021-10-06 09:53:16 C 01 24 55.169 -34 20 33.82 U F51
2021-10-25 02:37:14 C 01 34 27.36 -35 56 20.2 u 807
2021-10-25 02:45:05 C 01 34 27.51 -35 56 19.4 u 807
2021-10-25 02:53:06 C 01 34 27.70 -35 56 17.5 u 807
2021-10-28 01:26:59 C 01 36 37.15 -35 33 37.6 u 807
2021-10-28 01:34:40 C 01 36 37.40 -35 33 34.3 u 807
2021-10-28 01:42:21 C 01 36 37.54 -35 33 31.6 u 807
2021-11-02 02:05:42 C 01 41 03.21 -34 23 06.3 V W94
2021-11-02 02:05:42 C 01 41 03.21 -34 23 06.4 V W94
2021-11-02 02:14:02 C 01 41 03.45 -34 23 00.2 V W94
2021-11-02 02:14:02 C 01 41 03.45 -34 23 00.4 V W94
2021-11-02 02:22:15 C 01 41 03.54 -34 22 54.1 V W94
2021-11-02 02:22:15 C 01 41 03.65 -34 22 54.3 V W94
2021-11-07 01:42:00 C 01 46 41.93 -32 26 30.0 V W94
2021-11-07 01:50:17 C 01 46 42.27 -32 26 20.5 V W94
2021-11-07 01:58:30 C 01 46 42.55 -32 26 10.7 V W94
2021-11-10 05:55:46 C 01 51 03.87 -30 44 42.0 V I52
2021-11-10 06:01:33 C 01 51 04.13 -30 44 33.0 V I52
2021-11-10 06:07:20 C 01 51 04.42 -30 44 24.4 V I52
2021-11-10 06:13:06 C 01 51 04.66 -30 44 15.3 V I52
2021-11-28 09:22:41 C 02 30 28.45 -12 00 25.4 V T05
2021-11-28 09:27:58 C 02 30 29.00 -12 00 05.4 V T05
2021-11-28 09:38:35 C 02 30 30.09 -11 59 25.3 V T05
2021-11-28 09:53:12 C 02 30 31.57 -11 58 30.8 V T05
2021-12-02 05:46:40 C 02 42 08.17 -05 55 22.9 V 703
2021-12-02 05:54:17 C 02 42 08.97 -05 54 51.5 V 703
2021-12-02 06:01:54 C 02 42 09.92 -05 54 20.3 V 703
2021-12-03 21:35:26 C 02 47 29.20 -03 08 03.6 V L18
2021-12-03 21:46:26 C 02 47 30.57 -03 07 16.3 V L18
2021-12-03 21:57:26 C 02 47 31.96 -03 06 29.5 V L18
2021-12-05 04:33:26 C 02 51 49.57 -00 54 26.5 V G96
2021-12-05 04:43:55 C 02 51 50.87 -00 53 40.9 V G96
2021-12-05 04:54:26 C 02 51 52.18 -00 52 55.2 V G96
2021-12-05 05:04:53 C 02 51 53.48 -00 52 09.8 V G96
2021-12-05 20:36:00 C 02 54 06.07 +00 15 13.9 V 130
2021-12-05 20:40:24 C 02 54 06.62 +00 15 33.8 V 130
2021-12-05 20:44:47 C 02 54 07.19 +00 15 52.7 V 130
2021-12-09 05:48:45 C 03 06 04.53 +06 12 53.9 V 703