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39850 (1998 CG3)
Classification: Main-belt Asteroid          SPK-ID: 2039850
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1543817108740344 4.8851e-08  
a 2.227937975809373 7.2587e-09 au
q 1.883985099382689 1.0997e-07 au
i 5.107509904954764 4.9983e-06 deg
node 152.8369457641942 4.4413e-05 deg
peri 205.4758642517779 4.5875e-05 deg
M 39.9393168768485 1.2768e-05 deg
tp 2458865.743040701528
(2020-Jan-17.24304070)
4.2794e-05 TDB
period 1214.655360707256
3.33
5.9361e-06
1.625e-08
d
yr
n .2963803656951574 1.4484e-09 deg/d
Q 2.571890852236057 8.3793e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      12174 days (33.33 yr)  
   first obs. used      1986-09-07  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5101  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:52:13  

Additional Information
 Earth MOID = .881177 au 
 Jupiter MOID = 2.8679 au 
 T_jup = 3.623 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456220.5 (2012-Oct-20.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1542950873133678 4.879e-08  
q 1.884388907488008 1.0982e-07 au
tp 2456435.987147582364
(2013-May-23.48714758)
3.9316e-05 TDB
node 152.9269528984325 4.447e-05 deg
peri 205.3448426641829 4.5932e-05 deg
i 5.10370383388519 4.9958e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      12174 days (33.33 yr)  
   first obs. used      1986-09-07  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5101  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:52:13  

Additional Information
 Jupiter MOID = 2.8679 au 
 T_jup = 3.623 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.380417806398606E-15 -5.349764123358518E-15 1.623890796445032E-14 7.432079968207671E-15 -9.81124810608732E-15 -6.727176517038313E-16
q -5.349764123358518E-15 1.20603121009803E-14 3.077617461121675E-15 -1.704781522996383E-14 2.999411029284487E-14 1.564450992891552E-15
tp 1.623890796445032E-14 3.077617461121675E-15 1.54571979167423E-9 -7.786510409197174E-12 4.641085052357287E-10 -3.379887637754294E-13
node 7.432079968207671E-15 -1.704781522996383E-14 -7.786510409197174E-12 1.977560736359032E-9 -1.971353324776349E-9 6.639125951787074E-11
peri -9.81124810608732E-15 2.999411029284487E-14 4.641085052357287E-10 -1.971353324776349E-9 2.109725273431599E-9 -6.624143692688153E-11
i -6.727176517038313E-16 1.564450992891552E-15 -3.379887637754294E-13 6.639125951787074E-11 -6.624143692688153E-11 2.495803379746787E-11

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 14.7   n/a MPO436050  

39850 (1998 CG3)          Discovered 1998-Feb-06 by Elst, E. W. at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 CG3 = 1986 RP7 = 1999 NH5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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