399307 (1991 RJ2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4280928186 ± 2.51e-08
Semi-major axis (a)2.2097660994 AU ± 1.66e-09
Inclination (i)8.95431265° ± 3.16e-06
Long. of Asc. Node (Ω)171.64362512° ± 9.68e-06
Arg. of Perihelion (ω)151.12925957° ± 1.22e-05
Mean Anomaly (M)157.06565460° ± 3.94e-06
Mean Motion (n)0.3000494370°/day ± 3.39e-10
Perihelion dist (q)1.26378110 AU ± 5.54e-08
Aphelion dist (Q)3.15575110 AU ± 5.54e-08
Orbital Period3.28487963 yr ± 3.71e-09
Physical Parameters
H (abs. magnitude)18.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.248″
Uncertainty0
Orbit TypeAmor
MOID0.261649 AU
Observations Used282
Oppositions23
Arc Total1991-2024
First Observation Used1991-09-08
Last Observation Used2024-12-23
Observations (290)
Date Type RA Dec Mag Band Observatory
2024-10-24 11:07:30 C 04 35 28.388 +06 37 24.31 V G96
2024-10-24 11:16:27 C 04 35 28.075 +06 37 20.17 V G96
2024-10-24 11:25:14 C 04 35 27.712 +06 37 17.29 V G96
2024-10-29 17:36:23 C 04 30 35.22 +05 47 40.9 V D29
2024-10-29 18:17:07 C 04 30 33.42 +05 47 26.0 V D29
2024-10-29 18:43:06 C 04 30 32.23 +05 47 15.9 V D29
2024-10-29 19:03:28 C 04 30 31.40 +05 47 07.7 V D29
2024-10-29 19:23:49 C 04 30 30.40 +05 47 00.2 V D29
2024-10-30 18:38:27 C 04 29 29.94 +05 38 19.3 V D29
2024-10-30 18:58:49 C 04 29 28.98 +05 38 12.0 V D29
2024-10-30 19:19:11 C 04 29 28.09 +05 38 03.7 V D29
2024-10-31 08:58:28 C 04 28 51.870 +05 33 02.66 V G96
2024-10-31 09:05:52 C 04 28 51.503 +05 32 59.93 V G96
2024-10-31 09:13:17 C 04 28 51.136 +05 32 56.69 V G96
2024-10-31 09:20:40 C 04 28 50.822 +05 32 54.20 V G96
2024-11-02 18:33:31 C 04 26 11.71 +05 12 28.4 V D29
2024-11-02 18:53:53 C 04 26 10.67 +05 12 21.4 V D29
2024-11-10 15:46:37 C 04 16 31.60 +04 13 42.6 V D29
2024-11-10 16:06:59 C 04 16 30.47 +04 13 37.6 V D29
2024-11-11 17:54:07 C 04 15 06.89 +04 06 49.0 V D29
2024-11-11 18:19:34 C 04 15 05.45 +04 06 42.6 V D29
2024-11-24 07:02:34 C 03 58 55.304 +03 12 05.08 V G96
2024-11-24 07:09:58 C 03 58 54.905 +03 12 04.18 V G96
2024-11-24 07:17:23 C 03 58 54.498 +03 12 03.49 V G96
2024-11-24 07:24:47 C 03 58 54.088 +03 12 02.74 V G96
2024-11-30 09:47:55 C 03 51 44.552 +03 02 48.26 X F52
2024-11-30 10:04:46 C 03 51 43.740 +03 02 47.75 X F52
2024-11-30 10:21:34 C 03 51 42.929 +03 02 47.38 X F52
2024-11-30 10:38:16 C 03 51 42.106 +03 02 47.11 X F52
2024-12-01 17:16:56 C 03 50 18.80 +03 02 15.0 V D29
2024-12-01 17:37:18 C 03 50 17.90 +03 02 15.1 V D29
2024-12-01 17:57:39 C 03 50 16.91 +03 02 13.6 V D29
2024-12-05 08:06:16 C 03 46 38.541 +03 03 27.76 X F51
2024-12-05 08:25:43 C 03 46 37.724 +03 03 28.55 X F51
2024-12-05 08:45:17 C 03 46 36.895 +03 03 29.22 X F51
2024-12-05 09:04:57 C 03 46 36.054 +03 03 29.85 X F51
2024-12-23 07:14:49 C 03 34 52.238 +03 57 35.91 X F51
2024-12-23 07:31:26 C 03 34 51.963 +03 57 39.46 X F51
2024-12-23 07:48:08 C 03 34 51.708 +03 57 42.83 X F51
2024-12-23 08:04:54 C 03 34 51.444 +03 57 46.16 X F51