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187128 (2005 QW99)
Classification: Main-belt Asteroid          SPK-ID: 2187128
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1403241173251156 5.7867e-08  
a 2.688579360837481 2.3646e-08 au
q 2.311306835169438 1.6205e-07 au
i 4.721803481468436 6.596e-06 deg
node 201.8287265724458 6.411e-05 deg
peri 134.0524423220615 6.7083e-05 deg
M 174.6130624015745 1.9814e-05 deg
tp 2458419.489368293549
(2018-Oct-27.98936829)
8.6304e-05 TDB
period 1610.210734221607
4.41
2.1243e-05
5.816e-08
d
yr
n .2235732207896552 2.9495e-09 deg/d
Q 3.065851886505524 2.6964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      186  
   data-arc span      6646 days (18.20 yr)  
   first obs. used      2001-10-25  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5889  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 22:42:15  

Additional Information
 Earth MOID = 1.30314 au 
 Jupiter MOID = 2.32034 au 
 T_jup = 3.354 
[ 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 16.5   n/a MPO454288  

187128 (2005 QW99)          Discovered 2005-Aug-27 by NEAT at Palomar
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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