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221673 (2007 DP)
Classification: Main-belt Asteroid          SPK-ID: 2221673
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06891361682542051 5.6597e-08  
a 2.77255479663054 2.8481e-08 au
q 2.581488017748061 1.614e-07 au
i 5.810870833076986 6.6031e-06 deg
node 184.0207753880886 5.3743e-05 deg
peri 156.5682367975128 6.9051e-05 deg
M 170.9928972966206 4.3457e-05 deg
tp 2458399.570657527334
(2018-Oct-08.07065753)
0.00020338 TDB
period 1686.237076794991
4.62
2.5983e-05
7.114e-08
d
yr
n .213493111350776 3.2897e-09 deg/d
Q 2.963621575513018 3.0444e-08 au
  Orbit Determination Parameters
   # obs. used (total)      199  
   data-arc span      9794 days (26.81 yr)  
   first obs. used      1994-05-14  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .65222  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:16:28  

Additional Information
 Earth MOID = 1.57262 au 
 Jupiter MOID = 2.31354 au 
 T_jup = 3.326 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO454590  

221673 (2007 DP)          Discovered 2007-Feb-17 by Ries, W. at Altschwendt
Reference: 20091004/Numbers.arcLast Updated: 2009-10-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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