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91242 (1999 CX32)
Classification: Main-belt Asteroid          SPK-ID: 2091242
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222427192405964 6.3003e-08  
a 2.301483263995816 8.9213e-09 au
q 2.020143691518244 1.4522e-07 au
i 8.378240632047163 7.227e-06 deg
node 344.2909329193233 2.5176e-05 deg
peri 211.2202261438131 3.5803e-05 deg
M 353.8111209337496 2.5724e-05 deg
tp 2459022.423992974739
(2020-Jun-21.92399297)
9.112e-05 TDB
period 1275.293536425139
3.49
7.4152e-06
2.03e-08
d
yr
n .2822879515324292 1.6414e-09 deg/d
Q 2.582822836473388 1.0012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      7749 days (21.22 yr)  
   first obs. used      1999-02-10  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49652  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:38:42  

Additional Information
 Earth MOID = 1.0251 au 
 Jupiter MOID = 2.39352 au 
 T_jup = 3.567 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457130.5 (2015-Apr-18.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1226642862826618 6.2958e-08  
q 2.019218420719197 1.4511e-07 au
tp 2457747.330447856129
(2016-Dec-24.83044786)
9.1641e-05 TDB
node 344.3175825918491 2.5163e-05 deg
peri 211.3056021016095 3.5796e-05 deg
i 8.381132615152021 7.2288e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      7749 days (21.22 yr)  
   first obs. used      1999-02-10  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49652  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:38:42  

Additional Information
 Jupiter MOID = 2.39352 au 
 T_jup = 3.567 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.963757122648392E-15 -9.1228999878629E-15 -4.148303307892896E-12 -1.053543284797683E-15 -1.09336753823723E-12 -3.390941348587618E-15
q -9.1228999878629E-15 2.105828970991358E-14 9.46028354853795E-12 2.023393919746807E-15 2.483754024799623E-12 8.110748473830124E-15
tp -4.148303307892896E-12 9.46028354853795E-12 8.398102660670174E-9 -6.298432501420803E-12 2.336122774838282E-9 7.394452457865865E-12
node -1.053543284797683E-15 2.023393919746807E-15 -6.298432501420803E-12 6.331713106029254E-10 -6.273312008634386E-10 -4.461647933625405E-11
peri -1.09336753823723E-12 2.483754024799623E-12 2.336122774838282E-9 -6.273312008634386E-10 1.28131785894278E-9 4.62191547829248E-11
i -3.390941348587618E-15 8.110748473830124E-15 7.394452457865865E-12 -4.461647933625405E-11 4.62191547829248E-11 5.2256215384837E-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 15.5   n/a MPO493510  
diameter diameter 2.529 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.230   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91242 (1999 CX32)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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