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JPL Small-Body Database Browser
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344075 (1997 WK9)
Classification: Main-belt Asteroid          SPK-ID: 2344075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2315597780298115 1.9763e-07  
a 2.417570276827158 2.029e-08 au
q 1.857758240153591 4.7393e-07 au
i 6.617355801754547 1.4797e-05 deg
node 50.20708778457161 7.4437e-05 deg
peri 331.6388013959133 7.8025e-05 deg
M 270.5469231430299 2.009e-05 deg
tp 2458941.661386462363
(2020-Apr-02.16138646)
7.9037e-05 TDB
period 1372.989095979664
3.76
1.7284e-05
4.732e-08
d
yr
n .2622016453401842 3.3008e-09 deg/d
Q 2.977382313500724 2.4988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      6997 days (19.16 yr)  
   first obs. used      1997-10-31  
   last obs. used      2016-12-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .7772  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 08:31:32  

Additional Information
 Earth MOID = .863692 au 
 Jupiter MOID = 2.47918 au 
 T_jup = 3.470 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO288286  

344075 (1997 WK9)          Discovered 1997-Nov-21 by Spacewatch at Kitt Peak
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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