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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .157715930324755 6.5059e-08  
a 2.33641626006082 1.3244e-08 AU
q 1.967926195979443 1.5739e-07 AU
i 3.140501275572456 7.0684e-06 deg
node 180.6444470030895 8.968e-05 deg
peri 48.77120103258409 9.2626e-05 deg
M 276.2762938436764 2.6682e-05 deg
tp 2457303.867952840707
(2015-Oct-08.36795284)
9.7989e-05 JED
period 1304.438946106135
3.57
1.1091e-05
3.037e-08
d
yr
n .2759807203507927 2.3466e-09 deg/d
Q 2.704906324142197 1.5332e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      14295 days (39.14 yr)  
   first obs. used      1976-04-01  
   last obs. used      2015-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49466  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:15:37  

Additional Information
 Earth MOID = .961159 AU 
 T_jup = 3.548 
[ 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 15.0 mag n/a MPO337366  

12699 (1990 DD2)          Discovered 1990-Feb-24 by Debehogne, H. at La Silla
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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