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145780 (1998 DG8)
Classification: Main-belt Asteroid          SPK-ID: 2145780
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01504827678565216 9.0785e-08  
a 2.78007456251547 4.6484e-08 AU
q 2.738239231013987 2.4553e-07 AU
i 3.276359645467844 1.0055e-05 deg
node 306.6404036069432 0.00016781 deg
peri 288.1137644823818 0.0005167 deg
M 147.640113910805 0.00049126 deg
tp 2456306.139569577663
(2013-Jan-13.63956958)
0.0023119 JED
period 1693.101883564364
4.64
4.2464e-05
1.163e-07
d
yr
n .2126274877458161 5.3328e-09 deg/d
Q 2.821909894016954 4.7183e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      7950 days (21.77 yr)  
   first obs. used      1993-01-21  
   last obs. used      2014-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .64523  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 16:39:12  

Additional Information
 Earth MOID = 1.72911 AU 
 T_jup = 3.331 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7 mag n/a MPO229719  

145780 (1998 DG8)          Discovered 1998-Feb-21 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Alternate Designations
 1998 DG8 = 2004 OU6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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