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39858 (1998 DG6)
Classification: Main-belt Asteroid          SPK-ID: 2039858
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1546499331828181 4.1932e-08  
a 2.5475669327236 1.9564e-08 au
q 2.153585876799139 1.0757e-07 au
i 11.6323135808412 5.0685e-06 deg
node 348.7855603302631 2.8023e-05 deg
peri 306.5840626975463 3.6332e-05 deg
M 305.3121022040766 2.3981e-05 deg
tp 2458826.118942966116
(2019-Dec-08.61894297)
9.8427e-05 TDB
period 1485.206466902377
4.07
1.7109e-05
4.684e-08
d
yr
n .2423905416671357 2.7922e-09 deg/d
Q 2.941547988648062 2.259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      947  
   data-arc span      9324 days (25.53 yr)  
   first obs. used      1994-02-08  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53296  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:00:32  

Additional Information
 Earth MOID = 1.16012 au 
 Jupiter MOID = 2.37425 au 
 T_jup = 3.397 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO474256  
diameter diameter 3.438 km 0.499 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.342   0.198 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39858 (1998 DG6)          Discovered 1998-Feb-22 by JPL/GEODSS NEAT at Haleakala
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DG6 = 1994 CZ15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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