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19354 Fredkoehler (1997 FS2)
Classification: Main-belt Asteroid          SPK-ID: 2019354
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2077488071294901 5.1431e-08  
a 3.091199405003614 1.8259e-08 au
q 2.449006416014724 1.555e-07 au
i 11.36101615880413 5.8782e-06 deg
node 193.1659302860801 1.8835e-05 deg
peri 213.0343765827725 2.1253e-05 deg
M 269.218376308521 1.2531e-05 deg
tp 2459701.092575305316
(2022-May-01.59257531)
7.2302e-05 TDB
period 1985.130027221897
5.43
1.7589e-05
4.816e-08
d
yr
n .1813483223080376 1.6068e-09 deg/d
Q 3.733392393992504 2.2052e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1010  
   data-arc span      15255 days (41.77 yr)  
   first obs. used      1978-10-03  
   last obs. used      2020-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54026  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:09:18  

Additional Information
 Earth MOID = 1.46527 au 
 Jupiter MOID = 1.73159 au 
 T_jup = 3.162 
[ 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 14.04   n/a E2021B10  
diameter diameter 6.277 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.135   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19354 Fredkoehler           Discovered 1997 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Frederic Koehler (b. 1994) is a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors, for his computer-science project. He attends the Montgomery Blair High School, Silver Spring, Maryland.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

[ show close-approach data ]
Alternate Designations
 1997 FS2 = 1978 TF2 = 1989 XX = 1999 NO62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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