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JPL Small-Body Database Browser
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39859 (1998 DC7)
Classification: Main-belt Asteroid          SPK-ID: 2039859
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703884849061563 4.508e-08  
a 2.362858042234937 1.0693e-08 au
q 1.960254240370199 1.0623e-07 au
i 4.892953041493446 5.1163e-06 deg
node 197.9161873256388 5.0812e-05 deg
peri 2.140166963715107 5.2387e-05 deg
M 4.506297103353757 1.5136e-05 deg
tp 2458983.893726224608
(2020-May-14.39372622)
5.5725e-05 TDB
period 1326.645452358635
3.63
9.0052e-06
2.465e-08
d
yr
n .2713611231696895 1.842e-09 deg/d
Q 2.765461844099675 1.2515e-08 au
  Orbit Determination Parameters
   # obs. used (total)      772  
   data-arc span      10512 days (28.78 yr)  
   first obs. used      1991-03-25  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57933  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:52:13  

Additional Information
 Earth MOID = .957763 au 
 Jupiter MOID = 2.19201 au 
 T_jup = 3.525 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO263678  

39859 (1998 DC7)          Discovered 1998-Feb-17 by Spacewatch at Kitt Peak
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DC7 = 1991 FO4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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