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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09456040108275053 3.62e-08  
a 2.594779616904946 1.3122e-08 au
q 2.349416215609068 9.5294e-08 au
i 4.712493420746856 4.6181e-06 deg
node 83.09179775984811 5.0183e-05 deg
peri 89.36400233861649 5.6962e-05 deg
M 320.5200674401077 2.8903e-05 deg
tp 2459563.926055215063
(2021-Dec-15.42605522)
0.00012316 TDB
period 1526.683962440565
4.18
1.1581e-05
3.171e-08
d
yr
n .2358051887991946 1.7888e-09 deg/d
Q 2.840143018200823 1.4363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      7743 days (21.20 yr)  
   first obs. used      1999-11-30  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58157  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:52:25  

Additional Information
 Earth MOID = 1.3612 au 
 Jupiter MOID = 2.13217 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 15.67   n/a MPCxxxxx  

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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