2021 KW

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5506881000
Semi-major axis (a)1.6397208000 AU ± 3.00e+00
Inclination (i)0.45355000° ± 4.00e+00
Long. of Asc. Node (Ω)90.59414000° ± 5.00e+00
Arg. of Perihelion (ω)227.66851000° ± 6.00e+00
Mean Anomaly (M)28.60414000°
Mean Motion (n)0.4694066400°/day
Perihelion dist (q)0.73674610 AU
Aphelion dist (Q)2.54269550 AU
Orbital Period2.09968840 yr
Physical Parameters
H (abs. magnitude)27.78
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.850″
Uncertainty7
Orbit TypeApollo
MOID0.003866 AU
Observations Used20
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-05-19
Observations (22)
Date Type RA Dec Mag Band Observatory
2021-05-17 10:40:14 C 15 49 06.074 -14 32 57.62 V F51
2021-05-17 10:56:30 C 15 49 07.993 -14 32 29.65 V F51
2021-05-17 11:12:47 C 15 49 09.929 -14 32 01.30 V F51
2021-05-17 11:29:04 C 15 49 11.835 -14 31 32.95 V F51
2021-05-19 07:58:30 C 16 00 57.99 -12 33 09.0 V V00
2021-05-19 08:05:33 C 16 01 00.34 -12 32 39.3 V V00
2021-05-19 08:12:35 C 16 01 02.69 -12 32 09.8 V V00
2021-05-19 08:19:37 C 16 01 05.02 -12 31 40.3 V V00
2021-05-19 09:49:47 C 16 01 36.02 -12 25 08.3 V I52
2021-05-19 09:51:36 C 16 01 36.68 -12 25 00.6 V I52
2021-05-19 09:53:25 C 16 01 37.30 -12 24 51.8 V I52
2021-05-19 12:31:14 C 16 02 47.012 -12 12 12.52 V F51
2021-05-19 12:48:25 C 16 02 53.537 -12 10 49.19 V F51
2021-05-19 13:22:40 C 16 03 06.803 -12 08 00.89 V F51
2021-05-19 22:08:17 C 16 08 00.67 -11 22 32.1 V 587
2021-05-19 22:15:45 C 16 08 04.56 -11 21 46.8 V 587
2021-05-19 22:23:14 C 16 08 08.48 -11 21 01.1 V 587
2021-05-19 22:23:48 C 16 08 08.86 -11 20 56.7 V 203
2021-05-19 22:56:00 C 16 08 28.51 -11 17 33.3 V I93
2021-05-19 23:12:07 C 16 08 37.08 -11 15 52.7 V I93
2021-05-19 23:16:16 C 16 08 36.51 -11 15 31.7 V 203
2021-05-19 23:30:15 C 16 08 46.82 -11 13 59.3 V I93