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66934 Kalalova (1999 WF1)
Classification: Main-belt Asteroid          SPK-ID: 2066934
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066232467615795 2.6975e-08  
a 2.440740024493812 7.6871e-09 au
q 2.180500398581344 6.5738e-08 au
i 6.137179377052422 8.738e-07 deg
node 64.30986843115555 1.1168e-05 deg
peri 59.10169951238431 1.4617e-05 deg
M 146.4306509562411 5.4684e-06 deg
tp 2458829.986578172784
(2019-Dec-12.48657817)
2.0759e-05 TDB
period 1392.774193968065
3.81
6.5798e-06
1.801e-08
d
yr
n .258476931550797 1.2211e-09 deg/d
Q 2.700979650406279 8.5067e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2171  
   data-arc span      15812 days (43.29 yr)  
   first obs. used      1978-03-06  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45459  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:34:52  

Additional Information
 Earth MOID = 1.20421 au 
 Jupiter MOID = 2.36829 au 
 T_jup = 3.486 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456878.5 (2014-Aug-09.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1065316704876405 2.7178e-08  
q 2.181084299890114 6.6397e-08 au
tp 2457438.988498877150
(2016-Feb-20.48849888)
2.1078e-05 TDB
node 64.35502806224245 1.1174e-05 deg
peri 59.49065502405578 1.4558e-05 deg
i 6.135913791256832 8.7344e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2171  
   data-arc span      15812 days (43.29 yr)  
   first obs. used      1978-03-06  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45459  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:34:52  

Additional Information
 Jupiter MOID = 2.36829 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.38660116805634E-16 -1.794620804162653E-15 3.125948791227013E-13 -3.610398308459847E-14 1.557655033075813E-13 -3.560050491957517E-15
q -1.794620804162653E-15 4.408536456619917E-15 -7.993556945298031E-13 8.834363156437534E-14 -3.924801062633531E-13 8.894988386310624E-15
tp 3.125948791227013E-13 -7.993556945298031E-13 4.442825567254485E-10 -7.127955150376113E-11 2.122492620991337E-10 -5.549455682000205E-12
node -3.610398308459847E-14 8.834363156437534E-14 -7.127955150376113E-11 1.24864535461865E-10 -1.452796499861369E-10 2.920085288686701E-12
peri 1.557655033075813E-13 -3.924801062633531E-13 2.122492620991337E-10 -1.452796499861369E-10 2.119433176926218E-10 -4.814856144909452E-12
i -3.560050491957517E-15 8.894988386310624E-15 -5.549455682000205E-12 2.920085288686701E-12 -4.814856144909452E-12 7.629019561115561E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.94   n/a E2021B10  
diameter diameter 4.512 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.262   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66934 Kálalová           Discovered 1999 Nov. 26 by J. Ticha and M. Tichy at Klet.
Vlasta Kálalová-Di Lotti (1896-1971), a Czech physician interested in tropical diseases and entomology, came from the southern Bohemian town of Bernartice. In 1925, she founded a hospital in Baghdad (Mustausaf Cechoslovak), with a special focus on health services for women.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21

Alternate Designations
 1999 WF1 = 1978 EP3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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