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268945 (2007 DR42)
Classification: Main-belt Asteroid          SPK-ID: 2268945
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1053190796822708 4.7468e-08  
a 2.51468028862296 1.6899e-08 au
q 2.249836474930042 1.1554e-07 au
i 5.522688945698769 4.2246e-06 deg
node 116.5868717131583 6.6865e-05 deg
peri 358.0233126260758 7.4499e-05 deg
M 103.5731852208881 3.4428e-05 deg
tp 2458581.448475522157
(2019-Apr-07.94847552)		 0.00013791 TDB
period 1456.54059484886
3.99		 1.4682e-05
4.02e-08		 d
yr
n .247160979428353 2.4914e-09 deg/d
Q 2.779524102315877 1.8679e-08 au
   Orbit Determination Parameters
   # obs. used (total)      318  
   data-arc span      6465 days (17.70 yr)  
   first obs. used      2002-12-05  
   last obs. used      2020-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:09:44  

Additional Information
 Earth MOID = 1.26626 au 
 Jupiter MOID = 2.29667 au 
 T_jup = 3.445 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO418427  

268945 (2007 DR42)          Discovered 2007-Feb-17 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

Alternate Designations
 2007 DR42 = 2008 FW103 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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