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22675 Davidcohn (1998 QZ39)
Classification: Main-belt Asteroid          SPK-ID: 2022675
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .105930489019464 4.0304e-08  
a 2.793575557133215 1.575e-08 au
q 2.497650732253272 1.178e-07 au
i 6.132339097279127 5.9623e-06 deg
node 333.9664462633989 3.6979e-05 deg
peri 308.1857054618003 4.9253e-05 deg
M 327.5441998020901 3.4647e-05 deg
tp 2459354.254869992110
(2021-May-19.75486999)
0.00016431 TDB
period 1705.450269586145
4.67
1.4423e-05
3.949e-08
d
yr
n .2110879492765038 1.7851e-09 deg/d
Q 3.089500382013158 1.7418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1472  
   data-arc span      8922 days (24.43 yr)  
   first obs. used      1996-01-12  
   last obs. used      2020-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49236  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:09:10  

Additional Information
 Earth MOID = 1.48516 au 
 Jupiter MOID = 2.07708 au 
 T_jup = 3.311 
[ 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 14.03   n/a E2021B10  
diameter diameter 4.181 km 1.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.305   0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22675 Davidcohn           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
David Milton Cohn, III (b. 1992) is a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his environmental sciences project. He attends the Rhoades School, Encinitas, California.
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
 1998 QZ39 = 1996 BZ14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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