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JPL Small-Body Database Browser
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39805 (1997 WG2)
Classification: Main-belt Asteroid          SPK-ID: 2039805
[ 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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1059574247407629 3.1699e-08  
a 2.272438150085039 7.9103e-09 au
q 2.031656455819365 7.1774e-08 au
i 1.007296445392263 3.6247e-06 deg
node 223.0505471001859 0.00020833 deg
peri 252.8048750556769 0.00020957 deg
M 55.65120444110926 2.1365e-05 deg
tp 2458407.076783213371
(2018-Oct-15.57678321)		 7.4038e-05 TDB
period 1251.228230233041
3.43		 6.5332e-06
1.789e-08		 d
yr
n .2877172935372071 1.5023e-09 deg/d
Q 2.513219844350713 8.7484e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1090  
   data-arc span      9356 days (25.62 yr)  
   first obs. used      1993-09-14  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48162  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:08:29  

Additional Information
 Earth MOID = 1.04855 au 
 Jupiter MOID = 2.55572 au 
 T_jup = 3.604 
[ 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 15.9   n/a MPO474255  

39805 (1997 WG2)          Discovered 1997-Nov-23 by Kobayashi, T. at Oizumi
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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