Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
20254 Upice (1998 FE2)
Classification: Main-belt Asteroid          SPK-ID: 2020254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-29 04:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin