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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03665273902649903 3.4241e-08  
a 2.573620725237013 1.0177e-08 au
q 2.479290476441711 8.8746e-08 au
i 6.654482766371583 4.1387e-06 deg
node 234.421915797987 3.5754e-05 deg
peri 157.0327015193491 7.1807e-05 deg
M 336.9783029441849 6.1927e-05 deg
tp 2459096.938418268779
(2020-Sep-04.43841827)
0.00025943 TDB
period 1508.048276918442
4.13
8.9447e-06
2.449e-08
d
yr
n .2387191481267608 1.4159e-09 deg/d
Q 2.667950974032314 1.055e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1857  
   data-arc span      11944 days (32.70 yr)  
   first obs. used      1987-11-22  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46284  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:25:12  

Additional Information
 Earth MOID = 1.48683 au 
 Jupiter MOID = 2.49464 au 
 T_jup = 3.418 
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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

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