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173947 (2001 WZ76)
Classification: Main-belt Asteroid          SPK-ID: 2173947
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .1320863131358332 3.9759e-08  
a 3.022199292022404 2.5308e-08 au
q 2.623008129977439 1.3188e-07 au
i 1.093799762273523 5.4669e-06 deg
node 247.7024346432069 0.00027136 deg
peri 56.71789875966916 0.00027249 deg
M 283.6904078822387 2.567e-05 deg
tp 2459407.280108268088
(2021-Jul-11.78010827)
0.00013847 TDB
period 1919.035797629787
5.25
2.4105e-05
6.6e-08
d
yr
n .1875942076977606 2.3564e-09 deg/d
Q 3.421390454067369 2.8651e-08 au
  Orbit Determination Parameters
   # obs. used (total)      414  
   data-arc span      9075 days (24.85 yr)  
   first obs. used      1995-08-19  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51398  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:15:46  

Additional Information
 Earth MOID = 1.60802 au 
 Jupiter MOID = 1.80371 au 
 T_jup = 3.232 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457454.5 (2016-Mar-07.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1308345774146669 3.9758e-08  
q 2.62839150141227 1.3186e-07 au
tp 2457486.930141802525
(2016-Apr-08.43014180)
0.00013383 TDB
node 247.7210262010921 0.00027148 deg
peri 56.69163461283484 0.00027263 deg
i 1.093059872111348 5.466e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      414  
   data-arc span      9075 days (24.85 yr)  
   first obs. used      1995-08-19  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51398  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:15:46  

Additional Information
 Jupiter MOID = 1.80371 au 
 T_jup = 3.232 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.58073728275669E-15 -5.185103197566063E-15 6.287518153645718E-13 1.525828897765613E-15 1.743349941568922E-13 -2.511676283304191E-16
q -5.185103197566063E-15 1.738835215172946E-14 -1.410445780897323E-12 -6.257301537619689E-15 -4.484351785220131E-13 9.75083536548104E-16
tp 6.287518153645718E-13 -1.410445780897323E-12 1.790967551182654E-8 4.4644046023893E-11 3.390655217615905E-9 -5.887590558979226E-13
node 1.525828897765613E-15 -6.257301537619689E-15 4.4644046023893E-11 7.369971082968568E-8 -7.367792488891316E-8 -7.559763898911502E-10
peri 1.743349941568922E-13 -4.484351785220131E-13 3.390655217615905E-9 -7.367792488891316E-8 7.432789590766656E-8 7.557227780059445E-10
i -2.511676283304191E-16 9.75083536548104E-16 -5.887590558979226E-13 -7.559763898911502E-10 7.557227780059445E-10 2.987732175442797E-11

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 15.6   n/a MPO433119  

173947 (2001 WZ76)          Discovered 2001-Nov-20 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2001 WZ76 = 1995 QA17 = 1999 GJ13 = 2000 OK9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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