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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1933645379482785 5.5201e-08  
a 2.621241104366503 2.0426e-08 au
q 2.114386029369639 1.5255e-07 au
i 12.13148229010252 8.6856e-06 deg
node 293.237387995368 2.6648e-05 deg
peri 93.4486179728075 3.7085e-05 deg
M 70.37563109031345 2.5169e-05 deg
tp 2457097.474844384453
(2015-Mar-15.97484438)
0.00010717 JED
period 1550.097019827818
4.24
1.8119e-05
4.961e-08
d
yr
n .2322435275954457 2.7147e-09 deg/d
Q 3.128096179363367 2.4376e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1024  
   data-arc span      6746 days (18.47 yr)  
   first obs. used      1997-06-29  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50206  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:15:57  

Additional Information
 Earth MOID = 1.15863 au 
 Jupiter MOID = 2.47421 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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