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117135 (2004 PQ78)
Classification: Main-belt Asteroid          SPK-ID: 2117135
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1823296381905591 4.1307e-08  
a 3.150288963118278 2.8398e-08 au
q 2.575897916277211 1.2795e-07 au
i 27.48004820440297 5.8385e-06 deg
node 152.6256354270508 1.0174e-05 deg
peri 292.0087924542885 1.874e-05 deg
M 196.2873912767312 1.6193e-05 deg
tp 2459929.260298738293
(2022-Dec-15.76029874)
9.5494e-05 TDB
period 2042.321053663982
5.59
2.7616e-05
7.561e-08
d
yr
n .1762700332321158 2.3835e-09 deg/d
Q 3.724680009959346 3.3576e-08 au
  Orbit Determination Parameters
   # obs. used (total)      585  
   data-arc span      9834 days (26.92 yr)  
   first obs. used      1993-07-21  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54253  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:20:55  

Additional Information
 Earth MOID = 1.70841 au 
 Jupiter MOID = 1.70883 au 
 T_jup = 3.009 
[ 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 14.4   n/a MPO475028  
diameter diameter 8.408 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117135 (2004 PQ78)          Discovered 2004-Aug-09 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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