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17195 Jimrichardson (1999 XQ234)
Classification: Outer Main-belt Asteroid          SPK-ID: 2017195
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1220497816007078 6.0134e-08  
a 3.218720040152415 4.2854e-08 AU
q 2.825875962217991 1.9387e-07 AU
i 6.061223419043182 6.8179e-06 deg
node 154.5395790804124 6.1124e-05 deg
peri 273.1151385884895 6.7697e-05 deg
M 219.7739348064033 3.071e-05 deg
tp 2457822.079283508867
(2017-Mar-09.57928351)
0.00018648 JED
period 2109.226566793076
5.77
4.2124e-05
1.153e-07
d
yr
n .1706786770410129 3.4086e-09 deg/d
Q 3.611564118086839 4.8085e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      613  
   data-arc span      7063 days (19.34 yr)  
   first obs. used      1995-03-01  
   last obs. used      2014-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58926  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:38:10  

Additional Information
 Earth MOID = 1.84791 AU 
 T_jup = 3.169 
[ 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 MPO263500  

17195 Jimrichardson           Discovered 1999 Dec. 3 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
James Richardson (b. 1961) has calculated models of the shaking of asteroids by impacts for his thesis research at the University of Arizona. As a side venture, he has provided simulation tools for reproducing the phenomenology seen by the Deep Impact mission, and these have been invaluable in planning observing sequences.
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 XQ234 = 1995 EO2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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