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JPL Small-Body Database Browser
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442591 (2012 CR9)
Classification: Main-belt Asteroid          SPK-ID: 2442591
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2035699032697082 6.5709e-08  
a 3.090381850809552 7.6287e-08 au
q 2.46127311637379 2.0628e-07 au
i 3.176658277281746 1.0488e-05 deg
node 202.5765664285592 0.0002501 deg
peri 227.1710718828444 0.00025744 deg
M 169.3082173547551 7.0634e-05 deg
tp 2457667.262503245236
(2016-Oct-05.76250325)
0.00035931 TDB
period 1984.342544507213
5.43
7.3477e-05
2.012e-07
d
yr
n .1814202900585401 6.7177e-09 deg/d
Q 3.719490585245315 9.1817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      8997 days (24.63 yr)  
   first obs. used      1994-10-08  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69702  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:49  

Additional Information
 Earth MOID = 1.47668 au 
 Jupiter MOID = 1.5975 au 
 T_jup = 3.190 
[ show covariance matrix ]

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 16.8   n/a MPO456096  
diameter diameter 2.717 km 0.324 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.032   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

442591 (2012 CR9)          Discovered 2005-Nov-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2012 CR9 = 2005 VD72 = 2010 NH86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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