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JPL Small-Body Database Browser
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173085 (2007 PY31)
Classification: Main-belt Asteroid          SPK-ID: 2173085
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06699121054879975 6.3016e-08  
a 2.863827864203942 2.9048e-08 au
q 2.671976568777537 1.8366e-07 au
i 1.829827764534092 6.8913e-06 deg
node 7.018121160934742 0.00015243 deg
peri 324.4889585381532 0.00015672 deg
M 139.3817358425047 3.5419e-05 deg
tp 2457915.134624074592
(2017-Jun-10.63462407)
0.0001755 TDB
period 1770.18555438241
4.85
2.6933e-05
7.374e-08
d
yr
n .2033685107805539 3.0942e-09 deg/d
Q 3.055679159630348 3.0994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      6507 days (17.82 yr)  
   first obs. used      2001-03-23  
   last obs. used      2019-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61896  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:25:25  

Additional Information
 Earth MOID = 1.66056 au 
 Jupiter MOID = 2.185 au 
 T_jup = 3.297 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO422660  

173085 (2007 PY31)          Discovered 2007-Aug-08 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2007 PY31 = 2003 WO28 = 2005 EY227 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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