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JPL Small-Body Database Browser
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12790 Cernan (1995 UT2)
Classification: Main-belt Asteroid          SPK-ID: 2012790
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08293957203244724 3.6208e-08  
a 2.396038076020421 9.4131e-09 au
q 2.197311703421839 8.8415e-08 au
i 4.33975001882659 3.7563e-06 deg
node 99.99867995203181 5.6761e-05 deg
peri 139.5273707944402 6.19e-05 deg
M 12.66175257609965 2.6065e-05 deg
tp 2458952.853574845829
(2020-Apr-13.35357485)
9.8011e-05 TDB
period 1354.68711400023
3.71
7.983e-06
2.186e-08
d
yr
n .2657440203568209 1.566e-09 deg/d
Q 2.594764448619003 1.0194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1060  
   data-arc span      14964 days (40.97 yr)  
   first obs. used      1979-04-30  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56358  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:46:55  

Additional Information
 Earth MOID = 1.18669 au 
 Jupiter MOID = 2.40323 au 
 T_jup = 3.520 
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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 15.3   n/a MPO431649  
diameter diameter 4.874 km 0.495 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.068   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

12790 Cernan           Discovered 1995 Oct. 24 at Klet.
Eugene Andrew Cernan (b. 1934), U.S. astronaut, was commander of the Apollo 17 mission, which concluded the Apollo Lunar program in 1972.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1995 UT2 = 1979 HL6 = 1997 EW33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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