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101690 (1999 CA120)
Classification: Main-belt Asteroid          SPK-ID: 2101690
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1969366084546511 3.9867e-08  
a 2.368092165804927 1.0128e-08 au
q 1.901728126163275 9.5546e-08 au
i 10.70627592931652 5.2912e-06 deg
node 40.1327410645507 2.6059e-05 deg
peri 25.10902493755263 2.9662e-05 deg
M 48.23046996853674 1.5643e-05 deg
tp 2459022.173731706821
(2020-Jun-21.67373171)
5.7327e-05 TDB
period 1331.056003132952
3.64
8.5393e-06
2.338e-08
d
yr
n .2704619483723116 1.7351e-09 deg/d
Q 2.834456205446579 1.2123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      8045 days (22.03 yr)  
   first obs. used      1999-01-09  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51318  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:29:27  

Additional Information
 Earth MOID = .919171 au 
 Jupiter MOID = 2.52997 au 
 T_jup = 3.497 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456763.5 (2014-Apr-16.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1966907373485013 3.9938e-08  
q 1.901862657696066 9.5687e-08 au
tp 2456357.680024874545
(2013-Mar-06.18002487)
5.2032e-05 TDB
node 40.18666433697146 2.6016e-05 deg
peri 24.53564807198838 2.967e-05 deg
i 10.7174155502857 5.2975e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      8045 days (22.03 yr)  
   first obs. used      1999-01-09  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51318  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:29:27  

Additional Information
 Jupiter MOID = 2.52997 au 
 T_jup = 3.497 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.595049560126513E-15 -3.807834489971951E-15 -3.785737958477464E-13 -9.336582767713958E-16 -1.401015016094771E-13 -1.597109484852227E-15
q -3.807834489971951E-15 9.156033915248983E-15 9.726699064589797E-13 1.985365271171667E-15 3.537926069143152E-13 4.068139113821911E-15
tp -3.785737958477464E-13 9.726699064589797E-13 2.707335326501392E-9 7.300134077828763E-12 7.611251654000411E-10 -3.237318735159725E-12
node -9.336582767713958E-16 1.985365271171667E-15 7.300134077828763E-12 6.768092425949169E-10 -6.626714033883663E-10 -3.528956197794684E-11
peri -1.401015016094771E-13 3.537926069143152E-13 7.611251654000411E-10 -6.626714033883663E-10 8.802812125924052E-10 3.382762840092221E-11
i -1.597109484852227E-15 4.068139113821911E-15 -3.237318735159725E-12 -3.528956197794684E-11 3.382762840092221E-11 2.806328783886008E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO449616  
diameter diameter 4.503 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101690 (1999 CA120)          Discovered 1999-Feb-11 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 CA120 = 2001 QY108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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