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295866 (2008 WS11)
Classification: Main-belt Asteroid          SPK-ID: 2295866
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05699832561208091 5.2858e-08  
a 2.630742437461844 2.1652e-08 au
q 2.480794523409874 1.5031e-07 au
i 4.040101154115678 4.0094e-06 deg
node 64.62978006448007 7.3008e-05 deg
peri 254.2512119937238 8.8198e-05 deg
M 343.9683700267144 4.6554e-05 deg
tp 2459069.905054943644
(2020-Aug-08.40505494)
0.00020105 TDB
period 1558.532714474266
4.27
1.9241e-05
5.268e-08
d
yr
n .2309864891873235 2.8517e-09 deg/d
Q 2.780690351513813 2.2886e-08 au
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      8661 days (23.71 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:47:55  

Additional Information
 Earth MOID = 1.47121 au 
 Jupiter MOID = 2.37484 au 
 T_jup = 3.394 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457728.5 (2016-Dec-06.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05692545698548251 5.3402e-08  
q 2.480120554913108 1.519e-07 au
tp 2457518.817216081430
(2016-May-10.31721608)
0.00021048 TDB
node 64.64753028876551 7.2932e-05 deg
peri 255.7727097487886 8.7831e-05 deg
i 4.042802622589361 4.012e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      8661 days (23.71 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:47:55  

Additional Information
 Jupiter MOID = 2.37484 au 
 T_jup = 3.394 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.851745291794957E-15 -8.057330891017902E-15 5.544996181814946E-12 1.706117352147074E-14 1.302428701009868E-12 -2.286788376921252E-15
q -8.057330891017902E-15 2.307453615845556E-14 -1.732105758181469E-11 -4.771684644454394E-14 -4.057920679858246E-12 6.802461981971573E-15
tp 5.544996181814946E-12 -1.732105758181469E-11 4.43013924611732E-8 5.18414179981304E-11 1.033545284178881E-8 -6.561113696106943E-12
node 1.706117352147074E-14 -4.771684644454394E-14 5.18414179981304E-11 5.319092613983947E-9 -5.293479976398253E-9 -2.180303725559587E-11
peri 1.302428701009868E-12 -4.057920679858246E-12 1.033545284178881E-8 -5.293479976398253E-9 7.714203031633313E-9 2.021200087990472E-11
i -2.286788376921252E-15 6.802461981971573E-15 -6.561113696106943E-12 -2.180303725559587E-11 2.021200087990472E-11 1.609624180591879E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO433906  

295866 (2008 WS11)          Discovered 2008-Nov-18 by CSS at Catalina
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 WS11 = 2002 GR61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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