| (2009 DD45) |
| Classification: Apollo [NEO] SPK-ID: 3448992 |
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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2049504357373082 | 2.9229e-06 | |
| a | 1.240959869892356 | 4.5647e-06 | au |
| q | .9866246038254043 | 5.3735e-08 | au |
| i | 13.74465400550147 | 0.00011235 | deg |
| node | 161.9113449490519 | 1.3563e-05 | deg |
| peri | 13.93877853347558 | 0.00013927 | deg |
| M | 182.3594447836711 | 0.017887 | deg |
| tp | 2459449.657895683077
(2021-Aug-23.15789568) | 0.026463 | TDB |
| period | 504.9344860281251
1.38 | 0.002786
7.628e-06 | d
yr |
| n | .7129637803743668 | 3.9338e-06 | deg/d |
| Q | 1.495295135959307 | 5.5003e-06 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
25.8 |
|
n/a |
MPO156189 |
|
| rotation period |
rot_per |
1.2 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Incomplete or inconclusive result.
Published Reference List:
[Ryan, W. UNPUBLISHED] |
| SMASSII spectral type |
spec_B |
S |
|
n/a |
Binzel et al., IAUC 9024, March 4, 2009 |
Asumed albedo of 0.36 gives diameter of 19 +/- 4 meters |
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