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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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2089709892352169 6.4182e-08  
a 2.34126908821809 1.9594e-08 AU
q 1.852011770787321 1.534e-07 AU
i 7.30814507302719 1.02e-05 deg
node 59.0720184807348 5.8548e-05 deg
peri 91.7153387359556 6.4537e-05 deg
M 252.7240636012008 2.6205e-05 deg
tp 2457390.419753230725
(2016-Jan-02.91975323)
9.7068e-05 JED
period 1308.5051119128
3.58
1.6426e-05
4.497e-08
d
yr
n .2751231131789349 3.4537e-09 deg/d
Q 2.830526405648858 2.3688e-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 = .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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