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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1935219440177087 6.9916e-08  
a 2.621319377810391 2.465e-08 AU
q 2.114036555925233 1.9542e-07 AU
i 12.13227158930555 9.4137e-06 deg
node 293.2391708856712 3.0677e-05 deg
peri 93.38947845283742 4.0422e-05 deg
M 337.5136144758972 2.7554e-05 deg
tp 2457097.326779073813
(2015-Mar-15.82677907)
0.0001193 JED
period 1550.166452016451
4.24
2.1866e-05
5.987e-08
d
yr
n .2322331253729 3.2757e-09 deg/d
Q 3.128602199695549 2.942e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      834  
   data-arc span      6273 days (17.17 yr)  
   first obs. used      1997-06-29  
   last obs. used      2014-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4741  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 15:04:12  

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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