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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1823295818419118 4.1651e-08  
a 3.150288943627134 2.9588e-08 au
q 2.575898077854401 1.292e-07 au
i 27.48005534613061 6.1093e-06 deg
node 152.6256363230517 1.0211e-05 deg
peri 292.008774658674 1.9352e-05 deg
M 196.2874113499765 1.65e-05 deg
tp 2459929.260176240990
(2022-Dec-15.76017624)
9.6813e-05 TDB
period 2042.321034709924
5.59
2.8773e-05
7.878e-08
d
yr
n .1762700348680156 2.4833e-09 deg/d
Q 3.724679809399868 3.4983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      9425 days (25.80 yr)  
   first obs. used      1993-07-21  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54807  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:27  

Additional Information
 Earth MOID = 1.70841 au 
 Jupiter MOID = 1.70883 au 
 T_jup = 3.009 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457097.5 (2015-Mar-16.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1849748537352714 4.1693e-08  
q 2.563974200054255 1.2956e-07 au
tp 2457887.617886813831
(2017-May-14.11788681)
9.0431e-05 TDB
node 152.7771221586804 1.0222e-05 deg
peri 291.6037395626603 1.9084e-05 deg
i 27.47644770668398 6.1113e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      9425 days (25.80 yr)  
   first obs. used      1993-07-21  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54807  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:27  

Additional Information
 Jupiter MOID = 1.70883 au 
 T_jup = 3.009 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.738333383543465E-15 -5.308349521176786E-15 5.894004194220004E-13 2.24466145159979E-15 7.742446139308776E-14 3.532269282550818E-15
q -5.308349521176786E-15 1.678533991473028E-14 -1.844148222248226E-12 -1.050298507796843E-14 -2.869256467333523E-13 -8.653935108762722E-15
tp 5.894004194220004E-13 -1.844148222248226E-12 8.177804556116582E-9 -1.100029388318993E-11 1.471936478954332E-9 1.492021347224259E-11
node 2.24466145159979E-15 -1.050298507796843E-14 -1.100029388318993E-11 1.044849843295909E-10 -9.412934870425895E-11 -3.516766738045702E-13
peri 7.742446139308776E-14 -2.869256467333523E-13 1.471936478954332E-9 -9.412934870425895E-11 3.642139275566782E-10 2.735418082702111E-12
i 3.532269282550818E-15 -8.653935108762722E-15 1.492021347224259E-11 -3.516766738045702E-13 2.735418082702111E-12 3.734837395466446E-11

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

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