IAA RAS IAA Minor Planet Database

2021 JB4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5183959709 ± 9.28e-05
Semi-major axis (a)2.1211277861 AU ± 4.18e-04
Inclination (i)4.69742224° ± 5.26e-04
Long. of Asc. Node (Ω)130.58359513° ± 2.67e-03
Arg. of Perihelion (ω)157.61023124° ± 2.77e-03
Mean Anomaly (M)152.86836613° ± 1.55e-01
Mean Motion (n)0.3190524078°/day ± 9.44e-05
Perihelion dist (q)1.02154369 AU ± 2.82e-04
Aphelion dist (Q)3.22071188 AU ± 6.65e-04
Orbital Period3.08923004 yr ± 9.14e-04
Physical Parameters
H (abs. magnitude)23.38
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.188″
Uncertainty3
Orbit TypeAmor
MOID0.018911 AU
Observations Used38
Oppositions1
Arc Total2021-2021
First Observation Used2021-05-09
Last Observation Used2021-06-10
Observations (43)
Date Type RA Dec Mag Band Observatory
2021-05-09 09:31:01 C 17 14 56.85 +02 38 30.8 – V G96
2021-05-09 09:37:11 C 17 14 57.83 +02 38 37.4 – V G96
2021-05-09 09:43:21 C 17 14 58.86 +02 38 43.6 – V G96
2021-05-09 13:46:52 C 17 15 41.934 +02 43 20.64 – U F51
2021-05-09 14:01:38 C 17 15 44.455 +02 43 37.32 – U F51
2021-05-09 14:29:51 C 17 15 49.273 +02 44 08.40 – U F51
2021-05-10 07:50:46 C 17 19 01.26 +03 03 25.6 – u H21
2021-05-10 07:59:32 C 17 19 02.81 +03 03 35.6 – u H21
2021-05-10 08:54:15 C 17 19 13.36 +03 04 41.3 – V V06
2021-05-10 08:58:05 C 17 19 14.04 +03 04 46.3 – V V06
2021-05-10 09:01:55 C 17 19 14.72 +03 04 50.1 – V V06
2021-05-10 09:05:46 C 17 19 15.40 +03 04 54.7 – V V06
2021-05-10 10:00:55 C 17 19 24.99 +03 05 56.4 – V H01
2021-05-10 10:23:46 C 17 19 29.04 +03 06 22.6 – V H01
2021-05-10 10:28:25 C 17 19 29.88 +03 06 27.6 – V H01
2021-05-10 10:34:09 C 17 19 30.89 +03 06 34.1 – V H01
2021-05-10 14:16:35 C 17 20 12.193 +03 10 57.27 – V 568
2021-05-10 14:19:25 C 17 20 12.693 +03 11 00.49 – V 568
2021-05-10 14:20:50 C 17 20 12.942 +03 11 02.08 – V 568
2021-05-11 07:25:30 C 17 23 31.03 +03 30 37.8 – V H01
2021-05-11 07:33:43 C 17 23 32.56 +03 30 47.5 – V H01
2021-05-11 07:49:33 C 17 23 35.48 +03 31 06.0 – V H01
2021-05-11 07:55:34 C 17 23 36.59 +03 31 13.1 – V H01
2021-05-13 09:07:20 C 17 33 35.91 +04 30 32.7 – V I52
2021-05-13 09:15:01 C 17 33 37.44 +04 30 42.0 – V I52
2021-05-13 09:22:42 C 17 33 39.01 +04 30 52.1 – V I52
2021-05-16 12:06:30 C 17 50 44.244 +06 07 55.06 – U F51
2021-05-16 12:24:55 C 17 50 48.528 +06 08 20.09 – U F51
2021-05-16 12:43:18 C 17 50 52.811 +06 08 45.01 – U F51
2021-05-16 13:01:48 C 17 50 57.111 +06 09 09.98 – U F51
2021-05-17 11:12:29 C 17 56 30.63 +06 39 19.7 – V I52
2021-05-17 11:16:07 C 17 56 31.49 +06 39 24.5 – V I52
2021-05-24 08:47:57 C 18 46 43.06 +10 43 20.2 – V I52
2021-05-24 08:58:52 C 18 46 46.75 +10 43 38.3 – V I52
2021-06-03 08:18:03 C 20 28 28.52 +16 15 21.9 – V I52
2021-06-03 08:20:30 C 20 28 29.66 +16 15 25.2 – V I52
2021-06-03 08:22:58 C 20 28 30.78 +16 15 28.0 – V I52
2021-06-03 08:25:25 C 20 28 31.96 +16 15 29.8 – V I52
2021-06-05 14:48:33 C 20 54 55.495 +17 05 42.23 – V T12
2021-06-05 14:51:37 C 20 54 56.927 +17 05 44.55 – V T12
2021-06-10 09:40:41 C 21 50 29.10 +18 00 23.1 – V I52
2021-06-10 09:45:32 C 21 50 31.29 +18 00 24.6 – V I52
2021-06-10 09:50:23 C 21 50 33.48 +18 00 25.5 – V I52