1991 JR

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2589178410
Semi-major axis (a)1.4011733067 AU
Inclination (i)10.10018584°
Long. of Asc. Node (Ω)60.01797089°
Arg. of Perihelion (ω)207.45068146° ± 6.00e+00
Mean Anomaly (M)270.43964706°
Mean Motion (n)0.5942615600°/day
Perihelion dist (q)1.03837520 AU
Aphelion dist (Q)1.76392260 AU
Orbital Period1.65854190 yr
Physical Parameters
H (abs. magnitude)23.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.528″
Uncertainty
Orbit TypeAmor
MOID0.043619 AU
Observations Used20
Oppositions1
Arc Total1991-1991
First Observation Used
Last Observation Used1991-05-19
Observations (20)
Date Type RA Dec Mag Band Observatory
1991-05-08 10:44:23 A 16 10 29.88 +05 48 48.5 D 691
1991-05-08 11:15:27 A 16 10 32.31 +05 47 12.7 D 691
1991-05-10 04:44:11 A 16 14 59.59 +03 29 25.4 D 691
1991-05-10 04:56:57 A 16 15 00.83 +03 28 40.2 D 691
1991-05-10 05:12:02 A 16 15 02.26 +03 27 45.3 D 691
1991-05-11 05:27:16 C 16 17 47.61 +01 55 40.9 a 691
1991-05-11 05:33:31 C 16 17 48.22 +01 55 17.2 a 691
1991-05-11 05:48:25 C 16 17 49.70 +01 54 16.2 a 691
1991-05-11 09:42:57 C 16 18 11.46 +01 38 33.9 a 691
1991-05-11 09:49:18 C 16 18 12.10 +01 38 07.1 a 691
1991-05-11 10:05:02 C 16 18 13.58 +01 37 03.5 a 691
1991-05-12 06:55:55 C 16 20 52.74 +00 08 41.9 a 691
1991-05-12 07:02:35 C 16 20 53.41 +00 08 12.2 a 691
1991-05-12 07:17:22 C 16 20 54.90 +00 07 06.9 a 691
1991-05-13 08:38:52 C 16 24 14.24 -01 51 07.0 a 691
1991-05-13 08:45:25 C 16 24 14.94 -01 51 39.5 a 691
1991-05-13 08:57:21 C 16 24 16.25 -01 52 38.4 a 691
1991-05-16 06:39:29 A 16 35 15.05 -08 27 02.2 D 691
1991-05-16 06:54:19 A 16 35 17.21 -08 28 38.7 D 691
1991-05-19 06:57:34 A 16 50 09.80 -17 21 40.1 D 691