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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2088430269244459 6.4182e-08  
a 2.341599999986838 1.9605e-08 AU
q 1.852573168143304 1.5343e-07 AU
i 7.30777725520247 1.0199e-05 deg
node 59.07657505618078 5.8549e-05 deg
peri 91.6838929613283 6.4545e-05 deg
M 197.7326714751753 2.5988e-05 deg
tp 2457390.424015573457
(2016-Jan-02.92401557)
9.7142e-05 JED
period 1308.782535197493
3.58
1.6437e-05
4.5e-08
d
yr
n .2750647951958472 3.4545e-09 deg/d
Q 2.830626831830371 2.3699e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      11804 days (32.32 yr)  
   first obs. used      1980-01-23  
   last obs. used      2012-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55889  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 05:48:07  

Additional Information
 Earth MOID = .880742 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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