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 ]  
21270 Otokar (1996 OK)
Classification: Main-belt Asteroid          SPK-ID: 2021270
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .224067621708775 4.196e-08  
a 2.198170527539763 5.1561e-09 au
q 1.705631685323605 9.0785e-08 au
i 7.397162916696952 3.2777e-06 deg
node 126.1106382893675 3.8846e-05 deg
peri 210.2347939632649 3.9909e-05 deg
M 97.09619396115818 9.7859e-06 deg
tp 2458679.437041259858
(2019-Jul-14.93704126)
3.2065e-05 TDB
period 1190.393365909771
3.26
4.1883e-06
1.147e-08
d
yr
n .3024210402288878 1.064e-09 deg/d
Q 2.690709369755921 6.3114e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1052  
   data-arc span      8593 days (23.53 yr)  
   first obs. used      1996-07-19  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52817  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:21:30  

Additional Information
 Earth MOID = .700097 au 
 Jupiter MOID = 2.69049 au 
 T_jup = 3.623 
[ show covariance matrix ]

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 15.7   n/a MPO502325  

21270 Otokar           Discovered 1996 July 19 by J. Ticha and M. Tichy at Klet.
Otokar Březina, born Václav Jebavý (1868-1929), was a Czech lyric poet and one of the leaders of the symbolist movement. A self-absorbed tone in his first book, Tajemné dálky ("Mysterious Distances"), gave way to a hopeful outlook and an interest in nature in his last volume of verse, Ruce ("Hands").
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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-07 11:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin