2010 DM21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6574222947 ± 5.79e-08
Semi-major axis (a)2.8615388450 AU ± 4.13e-08
Inclination (i)21.15030117° ± 2.49e-05
Long. of Asc. Node (Ω)178.00341592° ± 3.15e-05
Arg. of Perihelion (ω)263.19620175° ± 3.26e-05
Mean Anomaly (M)99.45417000° ± 2.76e-05
Mean Motion (n)0.2036164247°/day ± 4.41e-09
Perihelion dist (q)0.98029941 AU ± 1.66e-07
Aphelion dist (Q)4.74277828 AU ± 1.79e-07
Orbital Period4.84060303 yr ± 1.05e-07
Physical Parameters
H (abs. magnitude)20.26
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.381″
Uncertainty0
Orbit TypeApollo
MOID0.256878 AU
Observations Used64
Oppositions5
Arc Total2009-2015
First Observation Used2009-09-17
Last Observation Used2015-01-31
Observations (79)
Date Type RA Dec Mag Band Observatory
2010-02-20 11:10:03 C 05 01 27.68 -17 56 52.8 r E12
2010-02-21 07:30:28 C 05 06 32.666 -17 14 41.76 o 568
2010-02-21 07:33:01 C 05 06 33.283 -17 14 36.36 o 568
2010-03-06 01:43:50 C 06 18 06.01 -06 32 25.9 o H21
2010-03-06 02:06:03 C 06 18 10.68 -06 31 40.1 o H21
2010-03-06 02:31:23 C 06 18 16.09 -06 30 51.0 o H21
2010-03-12 04:39:34 C 06 48 21.97 -01 56 47.4 o 291
2010-03-12 04:45:59 C 06 48 23.25 -01 56 35.9 o 291
2010-03-12 04:52:17 C 06 48 24.42 -01 56 25.4 o 291
2010-03-14 03:56:49 C 06 57 31.02 -00 36 09.9 o 291
2010-03-14 04:02:36 C 06 57 32.01 -00 36 01.1 o 291
2010-03-17 04:38:19 C 07 11 01.74 +01 19 22.4 o 291
2010-03-17 04:48:57 C 07 11 03.63 +01 19 37.8 o 291
2010-04-05 09:54:08 C 08 23 02.251 +09 40 18.73 o 568
2010-04-05 09:57:51 C 08 23 02.742 +09 40 21.28 o 568
2010-04-05 10:01:33 C 08 23 03.231 +09 40 23.83 o 568
2014-07-29 04:15:05 C 01 20 15.30 +14 24 27.6 t 950
2014-07-29 04:17:52 C 01 20 15.56 +14 24 27.8 t 950
2014-07-29 04:23:28 C 01 20 16.11 +14 24 28.2 t 950
2014-08-22 14:38:53 C 02 28 30.191 +13 34 33.28 t 568
2014-08-22 14:45:04 C 02 28 31.048 +13 34 31.13 t 568
2015-01-28 13:43:51 C 12 51 15.548 -21 40 55.91 L F51
2015-01-28 14:00:57 C 12 51 15.732 -21 40 42.86 L F51
2015-01-28 14:18:05 C 12 51 15.943 -21 40 29.57 L F51
2015-01-28 14:35:10 C 12 51 16.149 -21 40 16.52 L F51
2015-01-31 14:40:57 C 12 52 06.584 -20 42 30.83 L F51
2015-01-31 14:56:49 C 12 52 06.648 -20 42 17.43 L F51
2015-01-31 15:12:41 C 12 52 06.737 -20 42 04.46 L F51
2015-01-31 15:28:31 C 12 52 06.814 -20 41 51.14 L F51