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216395 (2008 DQ7)
Classification: Main-belt Asteroid          SPK-ID: 2216395
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04721574118460882 7.4193e-08  
a 3.043993571438599 3.9654e-08 au
q 2.900269158801942 2.4382e-07 au
i 8.378060957727822 9.6098e-06 deg
node 316.2715676158723 5.0452e-05 deg
peri 327.4247999886204 0.00011352 deg
M 4.146348101756231 0.00010207 deg
tp 2459178.157730688473
(2020-Nov-24.65773069)
0.00055007 TDB
period 1939.831571001699
5.31
3.7905e-05
1.038e-07
d
yr
n .1855831224636176 3.6264e-09 deg/d
Q 3.187717984075257 4.1526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      6374 days (17.45 yr)  
   first obs. used      2003-01-01  
   last obs. used      2020-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .65999  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:38  

Additional Information
 Earth MOID = 1.88607 au 
 Jupiter MOID = 1.98321 au 
 T_jup = 3.221 
[ 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 15.5   n/a MPO470324  

216395 (2008 DQ7)          Discovered 2008-Feb-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2008 DQ7 = 2005 MW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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