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22842 Alenashort (1999 RC107)
Classification: Main-belt Asteroid          SPK-ID: 2022842
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06510712983356208 2.8352e-08  
a 2.532014971631957 8.7594e-09 au
q 2.367162744133393 7.1673e-08 au
i 2.775063405544061 3.7959e-06 deg
node 105.7396274929048 7.7345e-05 deg
peri 318.4869705370956 8.5003e-05 deg
M 39.22528415373551 3.4427e-05 deg
tp 2459040.152782354500
(2020-Jul-09.65278235)
0.00014076 TDB
period 1471.627283211992
4.03
7.6365e-06
2.091e-08
d
yr
n .2446271580493259 1.2694e-09 deg/d
Q 2.696867199130522 9.3297e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1254  
   data-arc span      12244 days (33.52 yr)  
   first obs. used      1987-08-26  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53025  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:40  

Additional Information
 Earth MOID = 1.38071 au 
 Jupiter MOID = 2.48075 au 
 T_jup = 3.446 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO416946  

22842 Alenashort           Discovered 1999 Sept. 8 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Alena Short mentored a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the John Hancock Charter School, Pleasant Grove, Utah.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061009/MPCPages.arcLast Updated: 2006-10-14

Alternate Designations
 1999 RC107 = 1997 ES34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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