2021 JA4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2855023627 ± 1.61e-07
Semi-major axis (a)1.3143678036 AU ± 7.88e-09
Inclination (i)25.13963123° ± 5.47e-05
Long. of Asc. Node (Ω)217.55202028° ± 1.58e-05
Arg. of Perihelion (ω)236.68663289° ± 2.63e-05
Mean Anomaly (M)101.16636959° ± 1.99e-05
Mean Motion (n)0.6540890939°/day ± 5.88e-09
Perihelion dist (q)0.93911269 AU ± 2.12e-07
Aphelion dist (Q)1.68962292 AU ± 2.12e-07
Orbital Period1.50686855 yr ± 1.36e-08
Physical Parameters
H (abs. magnitude)22.32
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.289″
Uncertainty0
Orbit TypeApollo
MOID0.044935 AU
Observations Used33
Oppositions3
Arc Total2015-2024
First Observation Used2015-04-25
Last Observation Used2024-05-01
Observations (33)
Date Type RA Dec Mag Band Observatory
2015-04-25 12:12:33 C 15 25 43.862 -14 27 22.69 V F51
2015-04-25 12:30:03 C 15 25 42.332 -14 26 46.70 V F51
2015-04-25 12:47:21 C 15 25 40.782 -14 26 10.26 V F51
2015-04-25 13:04:45 C 15 25 39.271 -14 25 34.03 V F51
2015-05-17 08:42:06 C 14 46 18.79 +01 07 36.3 1 T09
2015-05-17 10:02:16 C 14 46 13.69 +01 09 22.6 1 T09
2015-05-17 10:14:27 C 14 46 12.91 +01 09 38.8 1 T09
2015-05-18 10:41:44 C 14 44 47.685 +01 41 21.23 V F51
2015-05-18 10:59:24 C 14 44 46.619 +01 41 43.86 V F51
2020-10-22 13:30:54 C 07 15 31.397 +20 20 02.15 U F51
2020-10-22 13:49:36 C 07 15 36.273 +20 17 46.52 U F51
2020-10-22 14:08:22 C 07 15 41.174 +20 15 29.28 U F51
2021-04-20 07:56:29 C 14 07 10.46 -22 29 18.6 V G96
2021-04-20 08:04:02 C 14 07 09.88 -22 28 56.6 V G96
2021-05-08 08:35:03 C 13 43 55.702 -05 38 42.10 U F51
2021-05-08 08:50:50 C 13 43 55.099 -05 38 13.61 U F51
2021-05-08 09:22:26 C 13 43 53.875 -05 37 15.87 U F51
2021-05-09 06:56:02 C 13 43 12.279 -04 58 27.33 V 568
2021-05-09 06:59:31 C 13 43 12.147 -04 58 21.24 V 568
2021-05-09 07:01:16 C 13 43 12.089 -04 58 18.08 V 568
2021-05-10 06:06:05 C 13 42 29.19 -04 18 12.5 V V06
2021-05-10 06:16:21 C 13 42 28.80 -04 17 54.9 V V06
2021-05-10 06:26:36 C 13 42 28.46 -04 17 36.9 V V06
2021-05-10 06:36:52 C 13 42 28.12 -04 17 19.9 V V06
2021-05-11 05:49:39 C 13 41 48.95 -03 38 25.1 o 291
2021-05-11 06:07:13 C 13 41 48.30 -03 37 56.5 o 291
2021-05-11 06:27:11 C 13 41 47.66 -03 37 23.9 V H01
2021-05-11 06:33:26 C 13 41 47.46 -03 37 13.4 V H01
2021-05-11 06:52:18 C 13 41 46.88 -03 36 42.4 V H01
2021-05-11 06:59:01 C 13 41 46.65 -03 36 31.4 V H01
2024-05-01 08:34:37 C 13 08 33.962 -11 37 56.97 X F52
2024-05-01 08:52:46 C 13 08 33.542 -11 37 15.21 X F52
2024-05-01 09:09:53 C 13 08 33.142 -11 36 35.69 X F52