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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1542955484903853 4.1936e-08  
a 2.546926388590709 1.9627e-08 au
q 2.153946984498469 1.0752e-07 au
i 11.63425195293009 5.0534e-06 deg
node 348.7454198617437 2.7976e-05 deg
peri 306.4438398152629 3.6265e-05 deg
M 42.41329472979992 2.3719e-05 deg
tp 2458825.586823737128
(2019-Dec-08.08682374)
9.8156e-05 TDB
period 1484.646355719016
4.06
1.7162e-05
4.699e-08
d
yr
n .2424819881268301 2.8029e-09 deg/d
Q 2.939905792682949 2.2656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1268  
   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      .47429  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:37:32  

Additional Information
 Earth MOID = 1.16129 au 
 Jupiter MOID = 2.37708 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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