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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 ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1936265104112927 7.7346e-08  
a 2.621626300126925 2.559e-08 AU
q 2.11400994803088 2.1166e-07 AU
i 12.13247088561245 9.4817e-06 deg
node 293.2400921150257 3.4631e-05 deg
peri 93.37739481131071 4.2998e-05 deg
M 291.0895475425148 2.7391e-05 deg
tp 2457097.281759596697
(2015-Mar-15.78175960)
0.00012004 JED
period 1550.438716401221
4.24
2.2701e-05
6.215e-08
d
yr
n .2321923441357354 3.3997e-09 deg/d
Q 3.12924265222297 3.0545e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      755  
   data-arc span      6217 days (17.02 yr)  
   first obs. used      1997-06-29  
   last obs. used      2014-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48935  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:04:04  

Additional Information
 Earth MOID = 1.15843 AU 
 T_jup = 3.346 
[ 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 (905)
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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