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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1935219466203638 6.9866e-08  
a 2.62131937867415 2.4601e-08 AU
q 2.114036549799446 1.9532e-07 AU
i 12.13227194719698 9.3542e-06 deg
node 293.2391711825384 3.066e-05 deg
peri 93.38947840911611 4.0409e-05 deg
M 337.5136137438394 2.75e-05 deg
tp 2457097.326782273925
(2015-Mar-15.82678227)
0.00011907 JED
period 1550.166452782651
4.24
2.1823e-05
5.975e-08
d
yr
n .2322331252581143 3.2693e-09 deg/d
Q 3.128602207548854 2.9362e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      849  
   data-arc span      6337 days (17.35 yr)  
   first obs. used      1997-06-29  
   last obs. used      2014-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47517  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:58:15  

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 (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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