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
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 ]  
5268 Cernohorsky (1971 US1)
Classification: Main-belt Asteroid          SPK-ID: 2005268
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 .2573135295755937 3.7004e-08  
a 2.647159041142218 9.7508e-09 au
q 1.96600920491797 9.8482e-08 au
i 14.35411331175564 4.0642e-06 deg
node 220.1032233773685 1.5785e-05 deg
peri 119.5345800581385 1.7211e-05 deg
M 139.7504747263594 6.7895e-06 deg
tp 2458389.812163901526
2.9125e-05 TDB
period 1573.14400130609
n .2288410976370332 1.2644e-09 deg/d
Q 3.328308877366467 1.226e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2114  
   data-arc span      22396 days (61.32 yr)  
   first obs. used      1958-10-10  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42156  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:33:52  

Additional Information
 Earth MOID = 1.00302 au 
 Jupiter MOID = 2.3144 au 
 T_jup = 3.301 
[ 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 13.2   n/a MPO452240  
diameter diameter 8.787 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 15.60 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 [Result based on fragmentary lightcurve(s), may be completely wrong.]
geometric albedo albedo 0.144   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

5268 Černohorský           Discovered 1971 Oct. 26 by L. Kohoutek at Hamburg-Bergedorf.
Czech physicist Martin Černohorský (b. 1923) read the basic course of physics to several generation of students of the Faculty of Science of Masaryk University and served as the first rector of the Silesian University in Opava. He insists on a high standard of education and ethics in society.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-04-25Last Updated: 2013-04-29

Alternate Designations
 1971 US1 = 1958 TO1 = 1988 QT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Feb-28 10:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin