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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577159314436699 6.5039e-08  
a 2.336416258648177 1.3064e-08 AU
q 1.967926192175345 1.573e-07 AU
i 3.140501303802661 7.0647e-06 deg
node 180.6444425623622 8.8461e-05 deg
peri 48.77120371028556 9.144e-05 deg
M 276.2762964495151 2.637e-05 deg
tp 2457303.867943123470
(2015-Oct-08.36794312)
9.6808e-05 JED
period 1304.438944923101
3.57
1.0941e-05
2.995e-08
d
yr
n .2759807206010877 2.3148e-09 deg/d
Q 2.704906325121008 1.5125e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      14322 days (39.21 yr)  
   first obs. used      1976-04-01  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4939  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:10:12  

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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