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8815 (1984 DR)
Classification: Main-belt Asteroid          SPK-ID: 2008815
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377415095502344 4.7751e-08  
a 2.253100527177481 9.8951e-09 AU
q 1.942755059395626 1.0856e-07 AU
i 5.795940725021618 5.9417e-06 deg
node 141.327738948761 5.3542e-05 deg
peri 291.5888741339244 6.1985e-05 deg
M 40.6735230266734 2.6537e-05 deg
tp 2456660.934340768536
(2014-Jan-03.43434077)
9.1235e-05 JED
period 1235.291009593088
3.38
8.1376e-06
2.228e-08
d
yr
n .2914293046774348 1.9198e-09 deg/d
Q 2.563445994959336 1.1258e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      16206 days (44.37 yr)  
   first obs. used      1969-11-15  
   last obs. used      2014-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51847  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:55:18  

Additional Information
 Earth MOID = .965589 AU 
 T_jup = 3.606 
[ 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 13.7 mag n/a MPO240274  

8815 (1984 DR)          Discovered 1984-Feb-23 by Debehogne, H. at La Silla (809)
Reference: 19980610/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1984 DR = 1969 VX1 = 1994 AN1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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