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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377741902065906 4.6578e-08  
a 2.252429908654911 1.3022e-08 AU
q 1.942103201992875 1.0445e-07 AU
i 5.796678836407485 5.6367e-06 deg
node 141.3285854030529 5.2792e-05 deg
peri 291.4480168062237 6.1378e-05 deg
M 99.1013374434721 2.5775e-05 deg
tp 2456660.599056655905
(2014-Jan-03.09905666)
8.9303e-05 JED
period 1234.739537936824
3.38
1.0708e-05
2.932e-08
d
yr
n .2915594657327799 2.5284e-09 deg/d
Q 2.562756615316946 1.4816e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1120  
   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      .49  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:22:07  

Additional Information
 Earth MOID = .965434 AU 
 T_jup = 3.607 
[ 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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