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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 ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01514417451594028 7.5268e-08  
a 2.780903303830753 3.4873e-08 au
q 2.738788818885586 2.1675e-07 au
i 3.275257689833653 8.5317e-06 deg
node 306.6362437637165 0.0001263 deg
peri 285.8446617499389 0.00045056 deg
M 277.5205552025362 0.00043985 deg
tp 2457988.579307867660
(2017-Aug-23.07930787)
0.0020716 JED
period 1693.859011483715
4.64
3.1862e-05
8.723e-08
d
yr
n .2125324466554406 3.9978e-09 deg/d
Q 2.823017788775921 3.5401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      8389 days (22.97 yr)  
   first obs. used      1993-01-21  
   last obs. used      2016-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61413  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 07:34:11  

Additional Information
 Earth MOID = 1.72837 au 
 Jupiter MOID = 2.16061 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 15.8 mag n/a MPO366819  

145780 (1998 DG8)          Discovered 1998-Feb-21 by Beijing Schmidt CCD Asteroid Program at Xinglong
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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