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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1543817305943605 4.4996e-08  
a 2.227937973331114 6.8384e-09 au
q 1.883985053351364 1.0059e-07 au
i 5.107509375003557 4.6262e-06 deg
node 152.8369420831532 4.2599e-05 deg
peri 205.4758688529629 4.4132e-05 deg
M 39.93931801233019 1.273e-05 deg
tp 2458865.743037095211
(2020-Jan-17.24303710)
4.2683e-05 TDB
period 1214.655358680564
3.33
5.5924e-06
1.531e-08
d
yr
n .2963803661896779 1.3646e-09 deg/d
Q 2.571890893310863 7.8941e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1620  
   data-arc span      12489 days (34.19 yr)  
   first obs. used      1986-09-07  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50472  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:11:23  

Additional Information
 Earth MOID = .881177 au 
 Jupiter MOID = 2.8679 au 
 T_jup = 3.623 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456590.5 (2013-Oct-25.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1542639189639085 4.4943e-08  
q 1.884428341652389 1.0042e-07 au
tp 2456436.179338604551
(2013-May-23.67933860)
3.9279e-05 TDB
node 152.921958455769 4.2649e-05 deg
peri 205.4250479722243 4.4182e-05 deg
i 5.103931112115329 4.624e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1620  
   data-arc span      12489 days (34.19 yr)  
   first obs. used      1986-09-07  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50472  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:11:23  

Additional Information
 Jupiter MOID = 2.8679 au 
 T_jup = 3.623 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.019852723366199E-15 -4.505511310290798E-15 -1.020710142744247E-14 9.665224633208873E-15 -3.439540890021109E-14 5.838453851309942E-17
q -4.505511310290798E-15 1.008365210461329E-14 6.247533649068953E-14 -2.224841495033532E-14 8.684491178513996E-14 -1.717288216264176E-16
tp -1.020710142744247E-14 6.247533649068953E-14 1.542833673937187E-9 -9.754445489083682E-12 4.642439459813471E-10 -6.05867796680361E-13
node 9.665224633208873E-15 -2.224841495033532E-14 -9.754445489083682E-12 1.818939624051558E-9 -1.813923166000854E-9 4.272204210885772E-11
peri -3.439540890021109E-14 8.684491178513996E-14 4.642439459813471E-10 -1.813923166000854E-9 1.952071528945809E-9 -4.272632613951624E-11
i 5.838453851309942E-17 -1.717288216264176E-16 -6.05867796680361E-13 4.272204210885772E-11 -4.272632613951624E-11 2.138121183224806E-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

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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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