2021 JD4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3295895905 ± 2.00e+00
Semi-major axis (a)1.7147756386 AU ± 3.00e+00
Inclination (i)21.08274240° ± 4.00e+00
Long. of Asc. Node (Ω)224.02667092° ± 5.00e+00
Arg. of Perihelion (ω)8.35030195° ± 6.00e+00
Mean Anomaly (M)6.20229633° ± 3.29e-01
Mean Motion (n)0.4389202000°/day ± 1.15e+00
Perihelion dist (q)1.14960340 AU ± 3.98e+00
Aphelion dist (Q)2.27998760 AU ± 5.26e+00
Orbital Period2.24552810 yr ± 5.89e+00
Physical Parameters
H (abs. magnitude)23.44
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.237″
Uncertainty3
Orbit TypeAmor
MOID0.142513 AU
Observations Used37
Oppositions1
Arc Total2021-2021
First Observation Used
Last Observation Used2021-05-23
Observations (37)
Date Type RA Dec Mag Band Observatory
2021-05-09 12:21:52 C 16 06 08.478 -02 07 15.78 U F51
2021-05-09 12:42:06 C 16 06 10.393 -02 05 12.34 U F51
2021-05-09 13:02:16 C 16 06 12.323 -02 03 08.62 U F51
2021-05-09 23:53:14 C 16 07 25.31 -00 57 22.3 V L01
2021-05-10 00:07:23 C 16 07 26.70 -00 55 57.2 V L01
2021-05-10 00:12:23 C 16 07 27.15 -00 55 26.6 V L01
2021-05-10 00:15:49 C 16 07 27.49 -00 55 05.5 V L01
2021-05-10 00:44:28 C 16 07 30.31 -00 52 11.9 V L01
2021-05-10 00:46:20 C 16 07 30.46 -00 52 00.7 V L01
2021-05-10 07:03:52 C 16 08 12.91 -00 13 49.9 V I52
2021-05-10 07:05:40 C 16 08 13.09 -00 13 38.9 V I52
2021-05-10 07:08:51 C 16 08 13.40 -00 13 19.6 V I52
2021-05-10 07:10:40 C 16 08 13.57 -00 13 09.0 V I52
2021-05-10 08:16:53 C 16 08 19.55 -00 06 31.5 V H01
2021-05-10 08:26:07 C 16 08 20.40 -00 05 35.9 V H01
2021-05-10 08:38:27 C 16 08 21.56 -00 04 21.8 V H01
2021-05-10 08:46:58 C 16 08 22.35 -00 03 30.6 V H01
2021-05-10 09:02:58 C 16 08 24.02 -00 01 52.4 V G96
2021-05-10 09:10:26 C 16 08 24.72 -00 01 07.9 V G96
2021-05-10 09:17:55 C 16 08 25.42 -00 00 22.3 V G96
2021-05-10 09:25:24 C 16 08 26.13 +00 00 22.4 V G96
2021-05-11 06:38:30 C 16 10 42.94 +02 06 26.6 V H01
2021-05-11 06:43:26 C 16 10 43.38 +02 06 55.6 V H01
2021-05-11 07:00:53 C 16 10 44.97 +02 08 38.0 V H01
2021-05-11 07:08:20 C 16 10 45.65 +02 09 21.9 V H01
2021-05-11 09:41:15 C 16 10 59.63 +02 24 19.3 V I52
2021-05-11 09:43:04 C 16 10 59.78 +02 24 30.2 V I52
2021-05-12 10:24:57 C 16 13 30.35 +04 46 45.3 V I52
2021-05-12 10:27:43 C 16 13 30.59 +04 47 00.7 V I52
2021-05-12 10:29:32 C 16 13 30.75 +04 47 11.2 V I52
2021-05-12 10:31:21 C 16 13 30.95 +04 47 21.4 V I52
2021-05-13 11:45:54 C 16 16 01.247 +07 07 54.38 U F51
2021-05-13 12:21:07 C 16 16 04.100 +07 11 05.99 U F51
2021-05-13 12:38:37 C 16 16 05.534 +07 12 40.78 U F51
2021-05-23 06:50:11 C 16 35 11.13 +24 07 48.0 V V06
2021-05-23 06:57:17 C 16 35 11.57 +24 08 10.6 V V06
2021-05-23 07:04:22 C 16 35 11.96 +24 08 33.3 V V06