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
JPL Small-Body Database Browser
Search: [ help ]  
61404 Ocenasek (2000 QM9)
Classification: Main-belt Asteroid          SPK-ID: 2061404
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2382535413692626 4.0479e-08  
a 2.721662827720882 1.3465e-08 au
q 2.073217020603301 1.0846e-07 au
i 6.610341482091113 4.9062e-06 deg
node 202.4318162558151 3.636e-05 deg
peri 137.3628653339458 3.7528e-05 deg
M 164.449965230854 1.0881e-05 deg
tp 2458251.328591107020
(2018-May-12.82859111)
4.7345e-05 TDB
period 1640.022889776031
4.49
1.217e-05
3.332e-08
d
yr
n .2195091313933815 1.629e-09 deg/d
Q 3.370108634838464 1.6673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1087  
   data-arc span      7655 days (20.96 yr)  
   first obs. used      1999-05-08  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5349  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 12:04:39  

Additional Information
 Earth MOID = 1.07083 au 
 Jupiter MOID = 2.08385 au 
 T_jup = 3.307 
[ 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 14.7   n/a MPO459268  
diameter diameter 6.475 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

61404 Očenášek           Discovered 2000 Aug. 26 by P. Pravec and P. Kušnirák at Ondřejov.
Czech handyman Ludvík Očenášek (1872-1949) constructed a radial engine for airplanes and his own monoplane in 1905. He began systematic rocket research in 1928, and in 1930 his two-stage rockets reached an altitude of 1.5 km. He considered the launching of rockets from aircraft and the long-distance rocket delivery of mail.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050125/MPCPages.arcLast Updated: 2005-06-01

[ show close-approach data ]
Alternate Designations
 2000 QM9 = 1999 JQ109 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-29 03:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin