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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222427212333459 6.2765e-08  
a 2.301483263594344 8.8559e-09 au
q 2.020143686579569 1.4459e-07 au
i 8.378240513357779 7.148e-06 deg
node 344.2909334489972 2.4633e-05 deg
peri 211.2202242140158 3.5296e-05 deg
M 353.8111226551726 2.5283e-05 deg
tp 2459022.423986870892
(2020-Jun-21.92398687)
8.9556e-05 TDB
period 1275.293536091445
3.49
7.3608e-06
2.015e-08
d
yr
n .2822879516062929 1.6293e-09 deg/d
Q 2.582822840609118 9.9385e-09 au
  Orbit Determination Parameters
   # obs. used (total)      934  
   data-arc span      7775 days (21.29 yr)  
   first obs. used      1999-02-10  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4987  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:40:36  

Additional Information
 Earth MOID = 1.0251 au 
 Jupiter MOID = 2.39352 au 
 T_jup = 3.567 
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Orbital Elements at Epoch 2457202.5 (2015-Jun-29.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1227159555377954 6.2714e-08  
q 2.01899698800297 1.4446e-07 au
tp 2457747.334085580921
(2016-Dec-24.83408558)
9.0214e-05 TDB
node 344.3172442446803 2.4621e-05 deg
peri 211.3178478235492 3.5285e-05 deg
i 8.38108665181583 7.1498e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      934  
   data-arc span      7775 days (21.29 yr)  
   first obs. used      1999-02-10  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4987  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:40:36  

Additional Information
 Jupiter MOID = 2.39352 au 
 T_jup = 3.567 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.932994336335051E-15 -9.046678511982327E-15 -4.060992134412664E-12 7.026745622254993E-15 -1.080138623041682E-12 -5.012026210495539E-15
q -9.046678511982327E-15 2.086949214988489E-14 9.244009610357125E-12 -1.670870906626867E-14 2.449705250380181E-12 1.185999146719275E-14
tp -4.060992134412664E-12 9.244009610357125E-12 8.138569678288472E-9 -1.673569858422334E-11 2.283345359332128E-9 9.435890609871767E-12
node 7.026745622254993E-15 -1.670870906626867E-14 -1.673569858422334E-11 6.062083161810971E-10 -6.034002403814363E-10 -3.90975906836027E-11
peri -1.080138623041682E-12 2.449705250380181E-12 2.283345359332128E-9 -6.034002403814363E-10 1.245020372078449E-9 4.129810573344292E-11
i -5.012026210495539E-15 1.185999146719275E-14 9.435890609871767E-12 -3.90975906836027E-11 4.129810573344292E-11 5.111941810394312E-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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