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90980 (1997 WM53)
Classification: Main-belt Asteroid          SPK-ID: 2090980
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1307502279784022 3.8471e-08  
a 2.327175169790203 1.0462e-08 au
q 2.022896485794457 9.0963e-08 au
i 7.241294427035098 4.4177e-06 deg
node 92.07510561621675 3.3872e-05 deg
peri 294.6029830946831 3.7963e-05 deg
M 155.4750277195106 1.6591e-05 deg
tp 2458440.484328176791
(2018-Nov-17.98432818)
5.9344e-05 TDB
period 1296.707547272916
3.55
8.7441e-06
2.394e-08
d
yr
n .2776262085904488 1.8721e-09 deg/d
Q 2.63145385378595 1.183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      910  
   data-arc span      8101 days (22.18 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56437  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:21:28  

Additional Information
 Earth MOID = 1.04051 au 
 Jupiter MOID = 2.80693 au 
 T_jup = 3.551 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO412705  

90980 (1997 WM53)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1997 WM53 = 2000 NC17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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