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
2021-12-09 05:56:22 C 03 06 05.58 +06 13 27.9 V 703
2021-12-09 06:04:00 C 03 06 06.69 +06 14 01.6 V 703
2021-12-09 06:11:38 C 03 06 07.64 +06 14 35.1 V 703
2021-12-11 18:14:18 C 03 15 29.55 +10 36 16.6 X 595
2021-12-11 18:45:43 C 03 15 34.18 +10 38 32.7 X 595
2021-12-11 19:16:39 C 03 15 38.68 +10 40 46.2 X 595
2021-12-11 22:49:59 C 03 16 09.66 +10 56 05.7 V K83
2021-12-11 22:57:48 C 03 16 10.86 +10 56 39.5 V K83
2021-12-11 23:05:15 C 03 16 11.89 +10 57 11.1 V K83
2021-12-13 02:21:37 C 03 20 35.70 +12 53 22.7 u H21
2021-12-13 02:25:39 C 03 20 36.31 +12 53 39.4 u H21
2021-12-13 02:29:41 C 03 20 36.92 +12 53 56.6 u H21
2021-12-13 02:33:43 C 03 20 37.49 +12 54 13.3 u H21
2021-12-13 02:37:45 C 03 20 38.08 +12 54 30.4 u H21
2021-12-13 02:42:11 C 03 20 38.73 +12 54 49.1 u H21
2021-12-20 16:42:40 C 03 50 47.04 +24 30 04.8 V D29
2021-12-20 16:59:35 C 03 50 49.72 +24 31 00.0 V D29
2021-12-20 23:59:51 C 03 52 01.61 +24 54 07.4 X C95
2021-12-21 00:40:08 C 03 52 08.02 +24 56 18.8 X C95
2021-12-21 11:04:06 C 03 53 58.60 +25 30 28.3 V D29
2021-12-21 11:27:00 C 03 54 02.22 +25 31 43.8 V D29
2021-12-21 11:49:55 C 03 54 05.81 +25 32 59.5 V D29
2021-12-22 19:34:33 C 03 59 28.17 +27 12 22.6 V 033
2021-12-22 19:34:58 C 03 59 28.23 +27 12 23.6 V 033
2021-12-22 19:35:23 C 03 59 28.31 +27 12 25.4 V 033
2021-12-22 20:27:23 C 03 59 36.67 +27 15 08.8 V 130
2021-12-22 20:35:25 C 03 59 37.93 +27 15 33.7 V 130
2021-12-22 20:43:37 C 03 59 39.22 +27 15 58.3 V 130
2021-12-23 16:15:16 C 04 02 55.73 +28 14 18.3 V D29
2021-12-23 16:42:00 C 04 02 59.93 +28 15 35.1 V D29
2021-12-23 17:08:43 C 04 03 04.21 +28 16 50.8 V D29
2021-12-23 23:16:15 C 04 04 07.74 +28 34 28.9 V 204
2021-12-23 23:26:42 C 04 04 09.40 +28 34 58.3 V 204
2021-12-23 23:40:54 C 04 04 11.67 +28 35 38.7 V 204
2021-12-27 02:02:28 C 04 16 50.56 +31 53 28.7 V G96
2021-12-27 02:10:01 C 04 16 51.76 +31 53 47.7 V G96
2021-12-27 02:17:32 C 04 16 52.95 +31 54 06.9 V G96
2021-12-27 02:25:02 C 04 16 54.15 +31 54 25.6 V G96
2021-12-27 12:27:08 C 04 18 34.37 +32 18 41.8 V D29
2021-12-27 12:47:30 C 04 18 37.51 +32 19 31.1 V D29
2021-12-27 13:07:52 C 04 18 40.63 +32 20 20.2 V D29