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26992 (1997 WE47)
Classification: Main-belt Asteroid          SPK-ID: 2026992
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07593931834848036 4.3758e-08  
a 3.063176851823098 2.1111e-08 au
q 2.830561289714808 1.3844e-07 au
i 11.78451540118103 4.6929e-06 deg
node 86.8410643623299 2.3352e-05 deg
peri 339.3300094793541 3.9675e-05 deg
M 67.38738082172758 3.1005e-05 deg
tp 2458633.950518087845
(2019-May-30.45051809)
0.00016873 TDB
period 1958.197690417268
5.36
2.0243e-05
5.542e-08
d
yr
n .1838425209884138 1.9005e-09 deg/d
Q 3.295792413931388 2.2714e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1086  
   data-arc span      8077 days (22.11 yr)  
   first obs. used      1997-11-26  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53258  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 02:42:38  

Additional Information
 Earth MOID = 1.84815 au 
 Jupiter MOID = 1.96374 au 
 T_jup = 3.197 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456966.5 (2014-Nov-05.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07447564609536381 4.3616e-08  
q 2.837996223603856 1.3798e-07 au
tp 2456685.682969897683
(2014-Jan-28.18296990)
0.00017487 TDB
node 86.96193038409368 2.3319e-05 deg
peri 341.1715388451865 4.0197e-05 deg
i 11.78972394452807 4.6936e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1086  
   data-arc span      8077 days (22.11 yr)  
   first obs. used      1997-11-26  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53258  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 02:42:38  

Additional Information
 Jupiter MOID = 1.96374 au 
 T_jup = 3.197 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.902325647648161E-15 -5.957569675400604E-15 -1.405140930876883E-12 3.672412369233936E-16 -2.936951187966362E-13 -1.303300672782809E-15
q -5.957569675400604E-15 1.903722251191893E-14 3.656821606316582E-12 2.609036500706028E-15 7.867361745810244E-13 4.205670665799352E-15
tp -1.405140930876883E-12 3.656821606316582E-12 3.057847614874879E-8 1.706795120230552E-11 5.75634061048881E-9 -2.771948425205083E-12
node 3.672412369233936E-16 2.609036500706028E-15 1.706795120230552E-11 5.437858983388202E-10 -5.287231717681207E-10 -1.92294582571385E-11
peri -2.936951187966362E-13 7.867361745810244E-13 5.75634061048881E-9 -5.287231717681207E-10 1.61580114149887E-9 1.835151554864558E-11
i -1.303300672782809E-15 4.205670665799352E-15 -2.771948425205083E-12 -1.92294582571385E-11 1.835151554864558E-11 2.203001445018242E-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 13.9   n/a MPO337487  

26992 (1997 WE47)          Discovered 1997-Nov-26 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WE47 = 1999 CP52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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