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442526 (2011 WG104)
Classification: Main-belt Asteroid          SPK-ID: 2442526
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03148819423617503 6.3557e-08  
a 3.050013900392366 6.2935e-08 au
q 2.953974470273777 1.9231e-07 au
i 7.380598236116256 7.3703e-06 deg
node 334.5107826875299 5.3595e-05 deg
peri 84.06847294066927 0.00013527 deg
M 288.8347322808337 0.0001278 deg
tp 2459781.106607897507
(2022-Jul-20.60660790)
0.00069527 TDB
period 1945.589235882445
5.33
6.0219e-05
1.649e-07
d
yr
n .1850339184451325 5.7271e-09 deg/d
Q 3.146053330510955 6.4917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      4101 days (11.23 yr)  
   first obs. used      2008-02-02  
   last obs. used      2019-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60158  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:44:32  

Additional Information
 Earth MOID = 1.97643 au 
 Jupiter MOID = 1.96538 au 
 T_jup = 3.224 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457490.5 (2016-Apr-12.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03591282174021317 6.4358e-08  
q 2.938747346479509 1.9675e-07 au
tp 2457828.676252009292
(2017-Mar-16.17625201)
0.00058613 TDB
node 334.6838949355841 5.383e-05 deg
peri 82.64551818353767 0.00012055 deg
i 7.366990470118861 7.3543e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      4101 days (11.23 yr)  
   first obs. used      2008-02-02  
   last obs. used      2019-04-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60158  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:44:32  

Additional Information
 Jupiter MOID = 1.96538 au 
 T_jup = 3.224 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.141933671988691E-15 -1.21141555227846E-14 -1.353393511961416E-12 -1.140436302728223E-14 -3.584389289290126E-13 -9.417348220357981E-16
q -1.21141555227846E-14 3.871212408796527E-14 1.55990297312269E-11 3.181510201237978E-14 3.092673823090394E-12 5.750347175001849E-15
tp -1.353393511961416E-12 1.55990297312269E-11 3.435536991858259E-7 -4.550598053315311E-11 6.326794002109564E-8 -6.411882724821827E-12
node -1.140436302728223E-14 3.181510201237978E-14 -4.550598053315311E-11 2.897706071766987E-9 -2.881502470857365E-9 2.675040062143109E-11
peri -3.584389289290126E-13 3.092673823090394E-12 6.326794002109564E-8 -2.881502470857365E-9 1.453212506089051E-8 -2.778824811281054E-11
i -9.417348220357981E-16 5.750347175001849E-15 -6.411882724821827E-12 2.675040062143109E-11 -2.778824811281054E-11 5.408636600807845E-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 16.5   n/a MPO437721  

442526 (2011 WG104)          Discovered 2008-Feb-02 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 WG104 = 2013 BC66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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