2009 KR21

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5231171913 ± 2.00e+00
Semi-major axis (a)1.7541210775 AU
Inclination (i)2.12770586° ± 4.00e+00
Long. of Asc. Node (Ω)69.01356497° ± 5.00e+00
Arg. of Perihelion (ω)242.52588555° ± 6.00e+00
Mean Anomaly (M)13.65916157°
Mean Motion (n)0.4242432400°/day
Perihelion dist (q)0.83653180 AU
Aphelion dist (Q)2.67170920 AU
Orbital Period2.32321360 yr
Physical Parameters
H (abs. magnitude)26.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.504″
Uncertainty
Orbit TypeApollo
MOID0.001152 AU
Observations Used16
Oppositions1
Arc Total2009-2009
First Observation Used
Last Observation Used2009-05-31
Observations (17)
Date Type RA Dec Mag Band Observatory
2009-05-31 05:34:48 C 14 47 39.19 -17 46 44.8 r 703
2009-05-31 05:42:34 C 14 47 24.36 -17 47 55.3 r 703
2009-05-31 05:50:24 C 14 47 09.24 -17 49 03.8 r 703
2009-05-31 05:58:14 C 14 46 54.22 -17 50 17.3 r 703
2009-05-31 06:51:10 C 14 45 08.60 -17 58 25.5 r 703
2009-05-31 06:51:52 C 14 45 07.16 -17 58 31.7 r 703
2009-05-31 06:52:35 C 14 45 05.68 -17 58 38.3 r 703
2009-05-31 06:53:17 C 14 45 04.24 -17 58 44.9 r 703
2009-05-31 07:44:17 C 14 43 16.82 -18 06 48.6 r 703
2009-05-31 07:44:58 C 14 43 15.45 -18 06 53.8 r 703
2009-05-31 07:45:34 C 14 43 14.08 -18 06 59.4 r 703
2009-05-31 07:46:17 C 14 43 12.57 -18 07 07.6 r 703
2009-05-31 22:58:53 C 13 38 38.00 -23 09 40.1 r J95
2009-05-31 23:00:17 C 13 38 24.22 -23 10 27.3 r J95
2009-05-31 23:03:49 C 13 37 49.86 -23 12 25.7 r J95
2009-05-31 23:06:20 C 13 37 25.28 -23 13 50.5 r J95
2009-05-31 23:10:22 C 13 36 45.28 -23 16 06.9 r J95