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11481 Znannya (1987 WO1)
Classification: Main-belt Asteroid          SPK-ID: 2011481
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03665274376394319 3.4012e-08  
a 2.573620721219625 9.0778e-09 au
q 2.479290460379188 8.7551e-08 au
i 6.654484203580051 4.0336e-06 deg
node 234.4219473087411 3.0093e-05 deg
peri 157.032650145385 6.4607e-05 deg
M 336.9783252566513 5.5473e-05 deg
tp 2459096.938324575536
(2020-Sep-04.43832458)		 0.00023227 TDB
period 1508.048273387378
4.13		 7.9789e-06
2.185e-08		 d
yr
n .2387191486857169 1.263e-09 deg/d
Q 2.667950982060063 9.4105e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2145  
   data-arc span      12048 days (32.99 yr)  
   first obs. used      1987-11-22  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43872  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:46:09  

Additional Information
 Earth MOID = 1.48683 au 
 Jupiter MOID = 2.49464 au 
 T_jup = 3.418 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456789.5 (2014-May-12.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03843849088795265 3.4032e-08  
q 2.474701977947821 8.7669e-08 au
tp 2456073.509566568855
(2012-May-26.00956657)		 0.00022409 TDB
node 234.4630574082345 3.0077e-05 deg
peri 155.5505894524129 6.2145e-05 deg
i 6.655644337689888 4.035e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2145  
   data-arc span      12048 days (32.99 yr)  
   first obs. used      1987-11-22  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43872  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:46:09  

Additional Information
 Jupiter MOID = 2.49464 au 
 T_jup = 3.418 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.158147543314895E-15 -2.9688712229148E-15 1.311986808995015E-12 -1.205185470768222E-16 3.24896414984486E-13 -1.129174302010677E-16
q -2.9688712229148E-15 7.685879519959644E-15 -3.876323195883246E-12 -8.343424453031616E-16 -9.48632331322627E-13 2.723797464152426E-16
tp 1.311986808995015E-12 -3.876323195883246E-12 5.021506296918153E-8 -2.303157038123327E-11 1.219493130989321E-8 9.320200404014879E-12
node -1.205185470768222E-16 -8.343424453031616E-16 -2.303157038123327E-11 9.046110445106558E-10 -9.040098177699561E-10 9.441280239258736E-12
peri 3.24896414984486E-13 -9.48632331322627E-13 1.219493130989321E-8 -9.040098177699561E-10 3.862000617242545E-9 -7.074952791958758E-12
i -1.129174302010677E-16 2.723797464152426E-16 9.320200404014879E-12 9.441280239258736E-12 -7.074952791958758E-12 1.62808879252158E-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 13.1   n/a MPO439167  
diameter diameter 7.154 km 0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.181   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11481 Znannya           Discovered 1987 Nov. 22 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
The scientific society Znannya was founded in Kiev in 1948 by Ukrainian astronomer Sergej Konstantinovich Vsekhsvyatskij and other scientists. Znannya propagates knowledge in astronomy, physics, history and other sciences in Ukraine and elsewhere. The name was suggested by K. I. Churyumov.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030910/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1987 WO1 = 1991 UX1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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