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42606 (1998 DD)
Classification: Main-belt Asteroid          SPK-ID: 2042606
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2089709802161436 6.3385e-08  
a 2.341269082313129 1.842e-08 AU
q 1.852011787232403 1.523e-07 AU
i 7.308134467059998 8.9786e-06 deg
node 59.0719846866645 5.6551e-05 deg
peri 91.71538727621589 6.0867e-05 deg
M 252.7240545555642 2.4756e-05 deg
tp 2457390.419784634094
(2016-Jan-02.91978463)
9.2455e-05 JED
period 1308.50510696249
3.58
1.5442e-05
4.228e-08
d
yr
n .275123114219775 3.2468e-09 deg/d
Q 2.830526377393855 2.2269e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      534  
   data-arc span      12697 days (34.76 yr)  
   first obs. used      1980-01-23  
   last obs. used      2014-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56079  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 14:20:33  

Additional Information
 Earth MOID = .88053 AU 
 T_jup = 3.524 
[ 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 MPO231685  

42606 (1998 DD)          Discovered 1998-Feb-16 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DD = 1980 BN2 = 1986 YK1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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