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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01504827849030947 9.0149e-08  
a 2.780074560712959 4.5238e-08 AU
q 2.738239224499525 2.422e-07 AU
i 3.276359900957867 9.6739e-06 deg
node 306.6404029353339 0.00016779 deg
peri 288.1137718165758 0.0005154 deg
M 147.6401078195254 0.00049011 deg
tp 2456306.139598900623
(2013-Jan-13.63959890)
0.0023062 JED
period 1693.101881917735
4.64
4.1326e-05
1.131e-07
d
yr
n .2126274879526073 5.1898e-09 deg/d
Q 2.821909896926392 4.5918e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      257  
   data-arc span      7965 days (21.81 yr)  
   first obs. used      1993-01-21  
   last obs. used      2014-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62111  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 07:59:49  

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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