2021 JR4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5155419552 ± 3.67e-05
Semi-major axis (a)2.0631855296 AU ± 1.47e-04
Inclination (i)2.72346052° ± 1.64e-04
Long. of Asc. Node (Ω)37.04564246° ± 2.05e-04
Arg. of Perihelion (ω)211.53841362° ± 4.99e-04
Mean Anomaly (M)184.94072360° ± 6.22e-02
Mean Motion (n)0.3325866797°/day ± 3.56e-05
Perihelion dist (q)0.99952683 AU ± 1.04e-04
Aphelion dist (Q)3.12684423 AU ± 2.35e-04
Orbital Period2.96351701 yr ± 3.17e-04
Physical Parameters
H (abs. magnitude)25.07
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.213″
Uncertainty2
Orbit TypeApollo
MOID0.012614 AU
Observations Used32
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-15
Last Observation Used2021-07-04
Observations (37)
Date Type RA Dec Mag Band Observatory
2021-04-15 06:02:00 C 11 30 37.139 +09 48 25.52 V F51
2021-04-15 06:18:56 C 11 30 35.843 +09 48 24.47 V F51
2021-04-15 06:35:51 C 11 30 34.549 +09 48 23.15 V F51
2021-04-15 06:52:48 C 11 30 33.242 +09 48 22.03 V F51
2021-05-10 03:51:19 C 10 20 42.48 -02 44 02.0 V G96
2021-05-10 03:59:30 C 10 20 39.30 -02 44 42.3 V G96
2021-05-10 04:07:40 C 10 20 36.09 -02 45 22.5 V G96
2021-05-10 04:15:51 C 10 20 32.90 -02 46 03.9 V G96
2021-05-10 05:45:07 C 10 19 58.66 -02 53 25.3 V I52
2021-05-10 05:46:54 C 10 19 58.00 -02 53 34.6 V I52
2021-05-10 05:48:40 C 10 19 57.29 -02 53 43.6 V I52
2021-05-10 05:50:26 C 10 19 56.68 -02 53 51.9 V I52
2021-05-11 03:15:36 C 10 12 01.56 -04 51 28.6 V I52
2021-05-11 03:19:51 C 10 11 59.54 -04 51 54.3 V I52
2021-05-11 03:21:16 C 10 11 58.91 -04 52 02.8 V I52
2021-05-11 04:06:30 C 10 11 37.81 -04 56 33.4 V G96
2021-05-11 04:14:00 C 10 11 34.29 -04 57 18.7 V G96
2021-05-11 04:21:29 C 10 11 30.81 -04 58 03.6 V G96
2021-05-11 04:28:59 C 10 11 27.32 -04 58 49.3 V G96
2021-05-12 07:41:48 C 09 58 47.87 -07 59 21.2 V 474
2021-05-12 07:44:25 C 09 58 46.38 -07 59 41.4 V 474
2021-05-12 07:49:39 C 09 58 43.35 -08 00 21.6 V 474
2021-05-12 07:52:16 C 09 58 41.81 -08 00 41.0 V 474
2021-05-12 07:54:53 C 09 58 40.21 -08 01 00.5 V 474
2021-05-14 04:15:42 C 09 28 28.19 -15 08 05.8 V I52
2021-05-14 04:16:31 C 09 28 27.42 -15 08 14.0 V I52
2021-05-14 04:17:20 C 09 28 26.65 -15 08 23.5 V I52
2021-05-14 04:18:08 C 09 28 25.92 -15 08 33.1 V I52
2021-05-15 05:54:22 C 09 02 41.706 -20 39 26.18 V T12
2021-05-15 05:55:20 C 09 02 40.479 -20 39 39.71 V T12
2021-05-15 05:58:01 C 09 02 37.057 -20 40 17.40 V T12
2021-05-15 05:59:11 C 09 02 35.557 -20 40 33.86 V T12
2021-05-15 06:00:10 C 09 02 34.308 -20 40 47.80 V T12
2021-05-15 06:01:51 C 09 02 32.162 -20 41 11.54 V T12
2021-07-04 13:25:06 C 23 51 26.403 -17 43 37.09 V T12
2021-07-04 13:37:36 C 23 51 25.751 -17 43 36.13 V T12
2021-07-04 13:50:19 C 23 51 25.091 -17 43 35.21 V T12