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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1838144194066718 4.1712e-08  
a 3.146212559219787 2.9566e-08 au
q 2.567893324316823 1.2927e-07 au
i 27.46746466251518 6.111e-06 deg
node 152.7450677437792 1.0223e-05 deg
peri 291.8023936163132 1.9181e-05 deg
M 125.8049249693213 1.6189e-05 deg
tp 2457888.179144827449
(2017-May-14.67914483)
9.1031e-05 TDB
period 2038.358259222782
5.58
2.8733e-05
7.867e-08
d
yr
n .1766127217191283 2.4895e-09 deg/d
Q 3.724531794122751 3.5001e-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 = 1.70143 au 
 Jupiter MOID = 1.71517 au 
 T_jup = 3.010 
[ 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 14.3   n/a MPO439762  
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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