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
2014-08-31 10:10:20 C 23 47 15.661 +05 37 41.07 L F51
2014-08-31 10:27:09 C 23 47 16.415 +05 37 21.67 L F51
2014-08-31 10:44:10 C 23 47 17.169 +05 37 02.07 L F51
2014-09-08 03:43:40 C 23 55 49.35 +01 57 18.7 q H21
2014-09-08 03:48:16 C 23 55 49.52 +01 57 13.8 q H21
2014-09-08 03:52:58 C 23 55 49.66 +01 57 07.7 q H21
2014-09-08 03:57:40 C 23 55 49.82 +01 57 02.2 q H21
2014-09-08 04:02:15 C 23 55 50.00 +01 56 56.8 q H21
2014-09-13 01:42:56 C 00 00 05.48 -00 21 53.9 q 160
2014-09-13 01:44:51 C 00 00 05.56 -00 21 56.0 q 160
2014-09-13 11:14:03 C 00 00 24.717 -00 32 43.18 L F51
2014-09-13 11:30:46 C 00 00 25.129 -00 33 02.40 L F51
2014-09-13 11:47:29 C 00 00 25.545 -00 33 21.61 L F51
2014-09-13 12:04:09 C 00 00 25.962 -00 33 40.86 L F51
2014-09-17 08:11:46 C 00 03 13.940 -02 16 59.09 L F51
2014-09-17 08:28:50 C 00 03 14.304 -02 17 17.67 L F51
2014-09-17 08:45:53 C 00 03 14.678 -02 17 36.27 L F51
2014-09-17 09:02:57 C 00 03 15.034 -02 17 54.89 L F51
2014-09-18 22:03:40 C 00 04 14.50 -02 57 44.0 q 089
2014-09-18 22:06:18 C 00 04 14.54 -02 57 47.0 q 089
2014-09-18 22:08:56 C 00 04 14.58 -02 57 49.7 q 089
2014-09-18 22:11:34 C 00 04 14.65 -02 57 52.5 q 089
2014-09-18 22:14:12 C 00 04 14.72 -02 57 54.9 q 089
2014-09-18 22:16:50 C 00 04 14.75 -02 57 57.9 q 089
2014-09-18 22:19:28 C 00 04 14.84 -02 58 00.8 q 089
2014-09-18 22:22:06 C 00 04 14.88 -02 58 03.6 q 089
2014-09-18 22:24:44 C 00 04 14.92 -02 58 06.0 q 089
2014-09-18 22:27:22 C 00 04 14.99 -02 58 09.1 q 089
2014-09-20 10:16:46 C 00 05 10.307 -03 35 09.16 L F51
2014-09-20 10:34:20 C 00 05 10.618 -03 35 27.07 L F51
2014-09-20 10:51:52 C 00 05 10.930 -03 35 44.93 L F51
2014-09-20 11:09:30 C 00 05 11.234 -03 36 02.84 L F51
2014-09-22 09:55:16 C 00 06 19.487 -04 22 35.50 L F51
2014-09-22 10:12:31 C 00 06 19.768 -04 22 52.24 L F51
2014-09-22 10:29:47 C 00 06 20.052 -04 23 08.99 L F51
2014-09-22 10:47:02 C 00 06 20.332 -04 23 25.73 L F51
2014-09-24 00:09:06 C 00 07 11.50 -04 59 00.5 q 160
2014-09-24 00:11:56 C 00 07 11.54 -04 59 03.4 q 160
2014-09-24 00:14:48 C 00 07 11.59 -04 59 06.4 q 160
2014-09-24 18:27:41 C 00 07 36.49 -05 15 51.4 r 168
2014-09-24 18:31:26 C 00 07 36.53 -05 15 55.1 r 168
2014-09-24 19:23:51 C 00 07 37.50 -05 16 42.7 r 168
2014-09-24 19:26:56 C 00 07 37.56 -05 16 45.1 r 168
2014-09-24 20:50:16 C 00 07 39.08 -05 18 00.7 r 168
2014-09-24 20:52:41 C 00 07 39.09 -05 18 02.5 r 168
2014-09-25 18:34:51 C 00 08 07.91 -05 37 21.2 r 168
2014-09-25 19:45:56 C 00 08 09.11 -05 38 23.9 r 168
2014-09-25 19:48:26 C 00 08 09.19 -05 38 25.6 r 168
2014-09-26 01:00:28 C 00 08 15.29 -05 42 54.8 q 160
2014-09-26 01:03:21 C 00 08 15.35 -05 42 57.0 q 160