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11823 Christen (1981 VF)
Classification: Main-belt Asteroid          SPK-ID: 2011823
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2475749213469829 6.8805e-08  
a 2.3702368107362 1.4737e-08 AU
q 1.783425618744461 1.654e-07 AU
i 4.871316737638864 7.4737e-06 deg
node 32.21762584947787 7.4852e-05 deg
peri 320.7716455957183 7.5797e-05 deg
M .4176765128611418 1.5513e-05 deg
tp 2456798.953593778232
(2014-May-21.45359378)
5.7428e-05 JED
period 1332.864603812944
3.65
1.2431e-05
3.403e-08
d
yr
n .2700949511076693 2.519e-09 deg/d
Q 2.957048002727938 1.8386e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      982  
   data-arc span      11571 days (31.68 yr)  
   first obs. used      1981-11-02  
   last obs. used      2013-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58625  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 16:57:32  

Additional Information
 Earth MOID = .780462 AU 
 T_jup = 3.498 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO266021  

11823 Christen           Discovered 1981 Nov. 2 by B. A. Skiff at the Anderson Mesa Station of the Lowell Observatory.
Roland W. Christen (b. 1944) is an optician and maker of affordable apochromatic refractors at the forefront of mechanical and optical design. The citation was provided by S. and A. French.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000124/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1981 VF = 1959 TM = 1992 US3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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