1991 BA

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6705770996 ± 2.00e+00
Semi-major axis (a)2.1575386797 AU
Inclination (i)2.12564337° ± 4.00e+00
Long. of Asc. Node (Ω)117.31810765° ± 5.00e+00
Arg. of Perihelion (ω)74.02996728° ± 6.00e+00
Mean Anomaly (M)349.67109558°
Mean Motion (n)0.3110041300°/day
Perihelion dist (q)0.71073540 AU
Aphelion dist (Q)3.60434220 AU
Orbital Period3.16911440 yr
Physical Parameters
H (abs. magnitude)28.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.499″
Uncertainty
Orbit TypeApollo
MOID0.001264 AU
Observations Used7
Oppositions1
Arc Total1991-1991
First Observation Used
Last Observation Used1991-01-18
Observations (7)
Date Type RA Dec Mag Band Observatory
1991-01-18 05:25:43 A 08 07 56.0 +12 27 03 D 691
1991-01-18 07:17:09 A 08 15 14.8 +11 19 52 D 691
1991-01-18 07:33:29 A 08 16 31.5 +11 07 46 D 691
1991-01-18 07:50:28 A 08 17 55.4 +10 54 28 D 691
1991-01-18 08:34:18 A 08 21 54.7 +10 16 09 D 691
1991-01-18 08:46:43 A 08 23 09.3 +10 04 07 D 691
1991-01-18 10:03:33 A 08 32 16.2 +08 34 57 D 691