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12699 (1990 DD2)
Classification: Main-belt Asteroid          SPK-ID: 2012699
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581686867302794 7.1968e-08  
a 2.335564824492159 1.6995e-08 AU
q 1.966151603428798 1.6939e-07 AU
i 3.139965682071457 8.5299e-06 deg
node 180.6841954466936 0.00010918 deg
peri 48.8237301660736 0.00011161 deg
M 221.0042630294702 2.7492e-05 deg
tp 2457303.867643173860
(2015-Oct-08.36764317)
0.0001026 JED
period 1303.725966653285
3.57
1.423e-05
3.896e-08
d
yr
n .2761316482206256 3.0139e-09 deg/d
Q 2.704978045555519 1.9683e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      652  
   data-arc span      13847 days (37.91 yr)  
   first obs. used      1976-04-01  
   last obs. used      2014-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51708  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:26:45  

Additional Information
 Earth MOID = .957986 AU 
 T_jup = 3.549 
[ 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 14.9 mag n/a MPO236464  

12699 (1990 DD2)          Discovered 1990-Feb-24 by Debehogne, H. at La Silla (809)
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 DD2 = 1976 GC2 = 1983 HP1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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