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JPL Small-Body Database Browser
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97194 (1999 WR20)
Classification: Main-belt Asteroid          SPK-ID: 2097194
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09473237964411645 5.1109e-08  
a 2.593813517247318 1.7316e-08 au
q 2.348095390405404 1.2679e-07 au
i 4.713128709156195 5.0511e-06 deg
node 83.09076353962929 6.2148e-05 deg
peri 89.73766727377939 6.8458e-05 deg
M 132.3511525230645 3.0836e-05 deg
tp 2458039.540151150753
(2017-Oct-13.04015115)
0.00012817 TDB
period 1525.831409367866
4.18
1.528e-05
4.183e-08
d
yr
n .2359369441406006 2.3627e-09 deg/d
Q 2.839531644089232 1.8957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      7220 days (19.77 yr)  
   first obs. used      1999-11-30  
   last obs. used      2019-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60824  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:02:17  

Additional Information
 Earth MOID = 1.35943 au 
 Jupiter MOID = 2.13568 au 
 T_jup = 3.407 
[ 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 15.6   n/a MPO264036  

97194 (1999 WR20)          Discovered 1999-Nov-30 by Spacewatch at Kitt Peak
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

Alternate Designations
 1999 WR20 = 2001 FC70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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