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17196 Mastrodemos (1999 XW234)
Classification: Main-belt Asteroid          SPK-ID: 2017196
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .080401051109625 9.4933e-08  
a 2.775209041655711 3.4202e-08 AU
q 2.552079317657657 2.7088e-07 AU
i 7.527986769241472 9.9774e-06 deg
node 198.1081533071101 5.4378e-05 deg
peri 357.0550359903063 7.3294e-05 deg
M 329.2834846786351 5.154e-05 deg
tp 2457144.582562492826
(2015-May-02.08256249)
0.00024288 JED
period 1688.659079805815
4.62
3.1217e-05
8.547e-08
d
yr
n .213186903327697 3.941e-09 deg/d
Q 2.998338765653765 3.6952e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      8018 days (21.95 yr)  
   first obs. used      1992-04-05  
   last obs. used      2014-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53754  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:00:32  

Additional Information
 Earth MOID = 1.55202 AU 
 T_jup = 3.318 
[ 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 13.9 mag n/a MPO296276  

17196 Mastrodemos           Discovered 1999 Dec. 3 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Nickolaos Mastrodemos (b. 1964), a member of the navigation group at the Jet Propulsion Laboratory, was a key figure in the development of autonavigation on the Deep Impact mission, as well as on earlier missions to comets. He developed the targeting algorithms and carried out the testing via numerous simulations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1999 XW234 = 1998 RX23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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