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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1932807823052008 4.1569e-08  
a 2.622525388423969 1.6849e-08 au
q 2.115641629734134 1.1116e-07 au
i 12.12562459733225 8.4683e-06 deg
node 293.2190152686734 2.2018e-05 deg
peri 93.61413617377785 3.3381e-05 deg
M 116.6510041404012 2.3579e-05 deg
tp 2457097.851999195966
(2015-Mar-16.35199920)
0.00010068 JED
period 1551.23637059872
4.25
1.495e-05
4.093e-08
d
yr
n .232072949566708 2.2365e-09 deg/d
Q 3.129409147113804 2.0106e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1239  
   data-arc span      6870 days (18.81 yr)  
   first obs. used      1997-06-29  
   last obs. used      2016-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48638  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:57:24  

Additional Information
 Earth MOID = 1.16001 au 
 Jupiter MOID = 2.47036 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 13.6 mag n/a MPO365621  

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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