2021 TP4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2489063332
Semi-major axis (a)1.3697327352 AU
Inclination (i)40.05463167°
Long. of Asc. Node (Ω)193.93177482°
Arg. of Perihelion (ω)187.83228917°
Mean Anomaly (M)200.95900067°
Mean Motion (n)0.6148136000°/day
Perihelion dist (q)1.02879730 AU
Aphelion dist (Q)1.71069690 AU
Orbital Period1.60309990 yr
Physical Parameters
H (abs. magnitude)24.62
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.349″
Uncertainty
Orbit TypeAmor
MOID0.029606 AU
Observations Used39
Oppositions1
Arc Total2021-2021
First Observation Used
Last Observation Used2021-10-10
Observations (42)
Date Type RA Dec Mag Band Observatory
2021-10-06 11:40:46 C 23 55 40.109 +25 13 30.58 V F51
2021-10-07 04:41:59 C 00 08 15.87 +10 42 23.5 V G96
2021-10-07 04:49:31 C 00 08 20.79 +10 35 34.6 V G96
2021-10-07 04:57:05 C 00 08 25.72 +10 28 44.4 V G96
2021-10-07 05:04:37 C 00 08 30.62 +10 21 54.9 V G96
2021-10-07 06:03:51 C 00 09 08.95 +09 28 06.3 V V06
2021-10-07 06:04:03 C 00 09 09.09 +09 27 55.4 V V06
2021-10-07 06:04:15 C 00 09 09.22 +09 27 44.9 V V06
2021-10-07 06:04:27 C 00 09 09.33 +09 27 34.5 V V06
2021-10-07 07:26:04 C 00 10 01.89 +08 13 02.0 V V06
2021-10-07 07:26:16 C 00 10 02.07 +08 12 50.6 V V06
2021-10-07 07:26:28 C 00 10 02.22 +08 12 40.2 V V06
2021-10-07 08:46:04 C 00 11 06.178 +07 00 34.44 V F51
2021-10-07 11:58:09 C 00 13 27.25 +04 02 38.4 r P93
2021-10-07 12:00:31 C 00 13 28.80 +04 00 27.1 r P93
2021-10-07 12:02:54 C 00 13 30.35 +03 58 15.5 r P93
2021-10-07 12:07:39 C 00 13 33.44 +03 53 52.8 r P93
2021-10-07 18:20:59 C 00 17 56.25 -01 50 35.8 V L18
2021-10-07 18:22:59 C 00 17 57.55 -01 52 24.4 V L18
2021-10-07 18:24:58 C 00 17 58.97 -01 54 13.4 V L18
2021-10-07 19:26:55 C 00 18 42.45 -02 50 49.0 V A17
2021-10-07 19:31:49 C 00 18 45.75 -02 55 17.7 V A17
2021-10-07 19:36:54 C 00 18 49.14 -02 59 56.4 V A17
2021-10-07 19:48:06 C 00 18 54.81 -03 10 09.3 V G02
2021-10-07 19:48:29 C 00 18 59.16 -03 10 09.1 X 958
2021-10-07 19:52:28 C 00 18 57.66 -03 14 08.2 V G02
2021-10-07 19:55:25 C 00 19 03.72 -03 16 28.4 X 958
2021-10-07 19:56:15 C 00 19 01.52 -03 17 34.8 V K74
2021-10-07 19:56:47 C 00 19 00.52 -03 18 04.4 V G02
2021-10-07 20:01:00 C 00 19 04.65 -03 21 54.2 V K74
2021-10-07 20:02:28 C 00 19 08.37 -03 22 53.3 X 958
2021-10-07 20:06:12 C 00 19 08.07 -03 26 37.9 V K74
2021-10-07 20:20:13 C 00 19 19.80 -03 39 05.9 V I93
2021-10-07 20:26:45 C 00 19 24.05 -03 45 01.4 V I93
2021-10-07 20:33:20 C 00 19 28.35 -03 51 00.7 V I93
2021-10-07 20:38:11 C 00 19 32.62 -03 55 11.6 q Z41
2021-10-07 20:39:52 C 00 19 33.70 -03 56 43.9 q Z41
2021-10-07 20:42:46 C 00 19 35.59 -03 59 21.2 q Z41
2021-10-10 12:37:18 C 01 00 51.80 -45 11 51.2 V 474
2021-10-10 12:38:25 C 01 00 52.38 -45 12 16.1 V 474
2021-10-10 12:39:32 C 01 00 53.01 -45 12 41.1 V 474
2021-10-10 12:40:39 C 01 00 53.59 -45 13 06.7 V 474