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31111 (1997 PN5)
Classification: Main-belt Asteroid          SPK-ID: 2031111
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1935219567163181 6.9577e-08  
a 2.621319377344058 2.4331e-08 AU
q 2.114036522262035 1.9452e-07 AU
i 12.13227254713208 9.1151e-06 deg
node 293.2391719693975 3.0487e-05 deg
peri 93.38947411751845 4.0107e-05 deg
M 337.5136170706521 2.7044e-05 deg
tp 2457097.326767874913
(2015-Mar-15.82676787)
0.00011708 JED
period 1550.166451602788
4.24
2.1583e-05
5.909e-08
d
yr
n .2322331254348715 3.2334e-09 deg/d
Q 3.12860223242608 2.904e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      881  
   data-arc span      6408 days (17.54 yr)  
   first obs. used      1997-06-29  
   last obs. used      2015-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48184  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 15:37:27  

Additional Information
 Earth MOID = 1.15952 AU 
 T_jup = 3.347 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO266109  

31111 (1997 PN5)          Discovered 1997-Aug-11 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

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