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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581686362450949 7.8355e-08  
a 2.335564815845347 1.7203e-08 AU
q 1.966151714061063 1.8397e-07 AU
i 3.139965830236706 9.1245e-06 deg
node 180.6842825358681 0.00011536 deg
peri 48.82363223427544 0.00011804 deg
M 221.0042814033999 3.011e-05 deg
tp 2457303.867573838012
(2015-Oct-08.36757384)
0.00011222 JED
period 1303.725959413234
3.57
1.4404e-05
3.944e-08
d
yr
n .2761316497540823 3.0509e-09 deg/d
Q 2.704977917629632 1.9924e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      653  
   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      .52354  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:00:35  

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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