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90961 (1997 WY17)
Classification: Main-belt Asteroid          SPK-ID: 2090961
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170646011702838 4.9489e-08  
a 2.332416608619821 9.4321e-09 au
q 2.059373188568795 1.1599e-07 au
i 6.75931912417663 5.3888e-06 deg
node 19.58478304447233 4.038e-05 deg
peri 359.8684002688429 4.6044e-05 deg
M 138.4987275871318 2.2908e-05 deg
tp 2458499.946044654892
(2019-Jan-16.44604466)
8.1498e-05 TDB
period 1301.090826346201
3.56
7.8923e-06
2.161e-08
d
yr
n .2766909063612207 1.6784e-09 deg/d
Q 2.605460028670846 1.0536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      603  
   data-arc span      8217 days (22.50 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57333  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:36:35  

Additional Information
 Earth MOID = 1.06156 au 
 Jupiter MOID = 2.8548 au 
 T_jup = 3.551 
[ 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 16.1   n/a MPO400836  

90961 (1997 WY17)          Discovered 1997-Nov-23 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1997 WY17 = 2001 XV23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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