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295896 (2008 WO81)
Classification: Main-belt Asteroid          SPK-ID: 2295896
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1267087806043587 4.638e-08  
a 2.293091650890771 1.5284e-08 au
q 2.002536803992366 1.0092e-07 au
i 3.185229258052621 6.9263e-06 deg
node 169.530101722526 8.5406e-05 deg
peri 284.3525995692045 8.9756e-05 deg
M 94.38050117600461 2.8887e-05 deg
tp 2458667.985701734310
(2019-Jul-03.48570173)
0.00010067 TDB
period 1268.324981157043
3.47
1.268e-05
3.472e-08
d
yr
n .2838389256289711 2.8377e-09 deg/d
Q 2.583646497789177 1.722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      6732 days (18.43 yr)  
   first obs. used      2001-11-17  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59663  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 18:45:25  

Additional Information
 Earth MOID = 1.02207 au 
 Jupiter MOID = 2.57031 au 
 T_jup = 3.584 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457362.5 (2015-Dec-06.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1259503654908579 4.6451e-08  
q 2.004518180676894 1.0102e-07 au
tp 2457400.202128049411
(2016-Jan-12.70212805)
9.8154e-05 TDB
node 169.5424510487689 8.5388e-05 deg
peri 284.6302401822441 8.9789e-05 deg
i 3.184804339019253 6.9275e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      6732 days (18.43 yr)  
   first obs. used      2001-11-17  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59663  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 18:45:25  

Additional Information
 Jupiter MOID = 2.57031 au 
 T_jup = 3.584 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.157683166751913E-15 -4.660083434544759E-15 7.317015795108692E-13 6.022063561881835E-15 2.145988684396434E-13 -1.421570211219822E-15
q -4.660083434544759E-15 1.020502810631502E-14 -1.43219653563937E-12 -1.318474258157197E-14 -4.242554869080524E-13 3.317553383245304E-15
tp 7.317015795108692E-13 -1.43219653563937E-12 9.634177902179471E-9 4.224045907259252E-11 2.741133753915821E-9 1.333585839182387E-12
node 6.022063561881835E-15 -1.318474258157197E-14 4.224045907259252E-11 7.291033606401156E-9 -7.266615818927947E-9 7.234879693090233E-11
peri 2.145988684396434E-13 -4.242554869080524E-13 2.741133753915821E-9 -7.266615818927947E-9 8.062120773545505E-9 -7.182112765602348E-11
i -1.421570211219822E-15 3.317553383245304E-15 1.333585839182387E-12 7.234879693090233E-11 -7.182112765602348E-11 4.799049844606372E-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 17.5   n/a MPO413252  

295896 (2008 WO81)          Discovered 2008-Nov-20 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 WO81 = 2004 RU116 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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