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22843 Stverak (1999 RF107)
Classification: Main-belt Asteroid          SPK-ID: 2022843
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132417359395075 4.5653e-08  
a 2.699278399951311 1.307e-08 au
q 2.341847081957595 1.261e-07 au
i 2.810316700107077 4.1533e-06 deg
node 298.7405326112029 9.3063e-05 deg
peri 233.9103968690246 9.4485e-05 deg
M 120.388275000207 1.5058e-05 deg
tp 2458658.808978950138
(2019-Jun-24.30897895)
6.778e-05 TDB
period 1619.831894572915
4.43
1.1765e-05
3.221e-08
d
yr
n .2222452843447175 1.6142e-09 deg/d
Q 3.056709717945027 1.4801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1653  
   data-arc span      9033 days (24.73 yr)  
   first obs. used      1995-11-23  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49484  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:40  

Additional Information
 Earth MOID = 1.34824 au 
 Jupiter MOID = 1.92294 au 
 T_jup = 3.354 
[ 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 14.02   n/a E2021B10  
diameter diameter 9.008 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22843 Stverak           Discovered 1999 Sept. 8 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Janet Stverak mentored a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Trailwood Elementary School, Overland Park, Kansas.
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

[ show close-approach data ]
Alternate Designations
 1999 RF107 = 1997 ED45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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