2009 DN4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2392346277
Semi-major axis (a)1.2279766373 AU
Inclination (i)3.09890249°
Long. of Asc. Node (Ω)151.56050678°
Arg. of Perihelion (ω)53.50045210°
Mean Anomaly (M)71.17771451°
Mean Motion (n)0.7246413700°/day
Perihelion dist (q)0.93378840 AU
Aphelion dist (Q)1.52139520 AU
Orbital Period1.36013170 yr
Physical Parameters
H (abs. magnitude)26.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.170″
Uncertainty
Orbit TypeApollo
MOID0.007342 AU
Observations Used20
Oppositions1
Arc Total2009-2009
First Observation Used
Last Observation Used2009-02-23
Observations (22)
Date Type RA Dec Mag Band Observatory
2009-02-20 04:36:20 C 07 11 58.30 +19 43 33.6 r G96
2009-02-20 04:48:36 C 07 11 53.62 +19 44 19.6 r G96
2009-02-20 05:01:00 C 07 11 48.87 +19 45 04.7 r G96
2009-02-20 05:13:18 C 07 11 44.01 +19 45 51.6 r G96
2009-02-20 05:41:54 C 07 11 33.18 +19 47 34.1 r G96
2009-02-20 05:54:24 C 07 11 28.39 +19 48 20.1 r G96
2009-02-20 06:06:50 C 07 11 23.67 +19 49 04.3 r G96
2009-02-20 06:19:23 C 07 11 18.78 +19 49 51.1 r G96
2009-02-20 07:22:02 C 07 10 54.78 +19 53 26.7 v H01
2009-02-20 07:28:43 C 07 10 52.29 +19 53 50.5 v H01
2009-02-20 07:36:24 C 07 10 49.45 +19 54 17.8 v H01
2009-02-20 07:42:49 C 07 10 47.08 +19 54 40.5 v H01
2009-02-21 02:56:21 C 07 04 16.69 +21 10 45.3 v H01
2009-02-21 03:04:58 C 07 04 12.99 +21 11 21.6 v H01
2009-02-21 03:13:39 C 07 04 09.26 +21 11 58.1 v H01
2009-02-21 03:29:45 C 07 04 02.30 +21 13 05.8 v H01
2009-02-21 03:46:00 C 07 03 55.27 +21 14 13.6 v H01
2009-02-21 07:28:13 C 07 02 19.24 +21 29 17.0 v H01
2009-02-21 07:37:16 C 07 02 15.43 +21 29 52.7 v H01
2009-02-21 07:46:18 C 07 02 11.65 +21 30 28.8 v H01
2009-02-23 03:15:37 C 06 43 07.26 +24 55 07.9 o H55
2009-02-23 03:24:57 C 06 43 01.90 +24 55 55.2 o H55