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187457 (2005 XA17)
Classification: Main-belt Asteroid          SPK-ID: 2187457
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1062077838111472 3.143e-08  
a 3.090843509196507 2.8393e-08 au
q 2.762571869977677 9.8687e-08 au
i 3.205887122737659 3.7866e-06 deg
node 132.7336462702704 8.2892e-05 deg
peri 170.1424170010519 8.9452e-05 deg
M 54.95994182141759 3.0339e-05 deg
tp 2458897.489473475328
(2020-Feb-17.98947348)
0.00016925 TDB
period 1984.787209261066
5.43
2.7349e-05
7.488e-08
d
yr
n .1813796452940805 2.4993e-09 deg/d
Q 3.419115148415337 3.1409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      420  
   data-arc span      7732 days (21.17 yr)  
   first obs. used      1999-10-15  
   last obs. used      2020-12-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49338  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:55:30  

Additional Information
 Earth MOID = 1.74531 au 
 Jupiter MOID = 1.78673 au 
 T_jup = 3.214 
[ 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 15.69   n/a MPCxxxxx  

187457 (2005 XA17)          Discovered 2005-Dec-01 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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