2016 DW21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5961810286 ± 7.52e-06
Semi-major axis (a)2.6418286195 AU ± 4.48e-05
Inclination (i)15.54356316° ± 1.29e-04
Long. of Asc. Node (Ω)133.11075002° ± 9.20e-05
Arg. of Perihelion (ω)94.17186367° ± 1.15e-04
Mean Anomaly (M)77.19393131° ± 2.08e-02
Mean Motion (n)0.2295383815°/day ± 5.84e-06
Perihelion dist (q)1.06682052 AU ± 2.69e-05
Aphelion dist (Q)4.21683672 AU ± 7.42e-05
Orbital Period4.29394978 yr ± 1.09e-04
Physical Parameters
H (abs. magnitude)21.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.402″
Uncertainty2
Orbit TypeAmor
MOID0.258561 AU
Observations Used71
Oppositions1
Arc Total2016-2016
First Observation Used2016-02-28
Last Observation Used2016-07-07
Observations (71)
Date Type RA Dec Mag Band Observatory
2016-05-30 08:36:33 C 17 30 12.20 +55 28 40.0 u H21
2016-05-30 08:47:13 C 17 30 13.56 +55 28 16.4 u H21
2016-06-06 09:46:09 C 17 51 32.89 +48 46 35.2 q G96
2016-06-06 09:54:32 C 17 51 33.71 +48 46 13.7 q G96
2016-06-06 10:03:04 C 17 51 34.54 +48 45 50.5 q G96
2016-06-18 07:41:11 C 18 15 23.29 +34 54 21.1 o 926
2016-06-18 07:49:09 C 18 15 23.69 +34 53 55.9 o 926
2016-06-18 07:59:37 C 18 15 24.21 +34 53 22.4 o 926
2016-06-19 06:33:25 C 18 16 48.94 +33 41 18.8 t 705
2016-06-19 06:34:53 C 18 16 49.01 +33 41 14.0 t 705
2016-06-19 06:36:20 C 18 16 49.10 +33 41 09.6 t 705
2016-06-21 06:46:26 C 18 19 37.60 +31 05 22.4 t 705
2016-06-21 06:47:54 C 18 19 37.66 +31 05 18.1 t 705
2016-06-21 06:49:22 C 18 19 37.73 +31 05 12.5 t 705
2016-06-25 06:20:08 C 18 24 32.75 +25 50 48.2 u H21
2016-06-25 06:23:39 C 18 24 32.90 +25 50 36.9 u H21
2016-06-25 06:38:33 C 18 24 33.48 +25 49 47.3 u H21
2016-06-28 07:35:43 C 18 27 49.23 +21 48 12.4 q H21
2016-06-28 07:46:20 C 18 27 49.58 +21 47 37.5 q H21
2016-07-07 01:01:54 C 18 35 35.40 +10 37 01.3 q 204
2016-07-07 01:21:21 C 18 35 35.95 +10 36 02.7 q 204