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20254 Upice (1998 FE2)
Classification: Main-belt Asteroid          SPK-ID: 2020254
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335684372579424 3.5363e-08  
a 2.509777332682318 9.0648e-09 au
q 2.174550296490533 8.7789e-08 au
i 3.9988839357195 3.3712e-06 deg
node 91.20685895373248 0.00010817 deg
peri 174.5379468640049 0.00011267 deg
M 145.4815849535148 3.3572e-05 deg
tp 2458413.609960530407
(2018-Oct-22.10996053)
0.00013538 TDB
period 1452.282873303609
3.98
7.8681e-06
2.154e-08
d
yr
n .2478855921374897 1.343e-09 deg/d
Q 2.845004368874102 1.0276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1572  
   data-arc span      8916 days (24.41 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51991  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:03:47  

Additional Information
 Earth MOID = 1.1587 au 
 Jupiter MOID = 2.22642 au 
 T_jup = 3.446 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO435887  
diameter diameter 3.389 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.321   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20254 Úpice           Discovered 1998 Mar. 21 by P. Pravec at Ondřejov.
Úpice is a small town in northeastern Bohemia. A public observatory was built there with the help and support of almost all the Úpice residents and has operated since 1959. Its main activities are solar astronomy and astronomy education. Meteorological, ecological and seismic measurements are also made there.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1998 FE2 = 1995 QS10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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