2009 DD

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4927184637 ± 2.00e+00
Semi-major axis (a)2.0301185754 AU ± 3.00e+00
Inclination (i)5.74718107° ± 4.00e+00
Long. of Asc. Node (Ω)149.09906729° ± 5.00e+00
Arg. of Perihelion (ω)2.07191809° ± 6.00e+00
Mean Anomaly (M)285.03772446° ± 3.02e-01
Mean Motion (n)0.3407393200°/day ± 7.55e-01
Perihelion dist (q)1.02984140 AU ± 4.34e+00
Aphelion dist (Q)3.03039400 AU ± 6.04e+00
Orbital Period2.89255630 yr ± 6.41e+00
Physical Parameters
H (abs. magnitude)25.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.689″
Uncertainty3
Orbit TypeAmor
MOID0.041223 AU
Observations Used60
Oppositions1
Arc Total2009-2009
First Observation Used
Last Observation Used2009-03-19
Observations (62)
Date Type RA Dec Mag Band Observatory
2009-02-27 11:11:11 C 13 57 37.03 +12 00 29.7 r 703
2009-02-27 11:12:05 C 13 57 37.35 +12 00 29.7 r 703
2009-02-27 12:17:39 C 13 58 02.93 +12 00 42.6 r 703
2009-02-27 12:18:33 C 13 58 03.35 +12 00 42.7 r 703
2009-02-27 12:19:26 C 13 58 03.67 +12 00 43.8 r 703
2009-02-27 12:20:19 C 13 58 04.01 +12 00 44.5 r 703
2009-02-28 10:54:17 C 14 07 16.50 +12 04 49.4 o 291
2009-02-28 10:59:57 C 14 07 18.51 +12 04 51.0 o 291
2009-02-28 11:05:41 C 14 07 20.48 +12 04 51.0 o 291
2009-03-19 09:48:30 C 15 18 38.58 +11 46 35.1 o 291
2009-03-19 10:01:43 C 15 18 38.94 +11 46 33.9 o 291
2009-03-19 10:14:24 C 15 18 39.24 +11 46 32.9 o 291