Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
7695 Premysl (1984 WA1)
Classification: Main-belt Asteroid          SPK-ID: 2007695
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2614503898017123 8.9059e-08  
a 2.298301602579897 1.2593e-08 AU
q 1.697409752703483 2.0288e-07 AU
i 26.00688949489287 9.4494e-06 deg
node 54.63392226064779 1.2231e-05 deg
peri 323.0275137503638 1.972e-05 deg
M 243.9818704217047 1.8972e-05 deg
tp 2457410.640177948297
(2016-Jan-23.14017795)
6.8582e-05 JED
period 1272.649926335386
3.48
1.046e-05
2.864e-08
d
yr
n .2828743337428426 2.325e-09 deg/d
Q 2.899193452456311 1.5886e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      11379 days (31.15 yr)  
   first obs. used      1983-05-06  
   last obs. used      2014-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53145  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:11:08  

Additional Information
 Earth MOID = .745703 AU 
 T_jup = 3.417 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO253417  
rotation period rot_per 11.734 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]

7695 Přemysl           Discovered 1984 Nov. 27 by A. Mrkos at Klet.
Named for a mythical hero Přemysl, called Ploughman. He married princess Libuše, and they became the mythical founders of the royal dynasty of the Přemyslids, ruling over Bohemia until 1306. Bohemian kings Přemysl Otakar I (?-1230) and Přemysl Otakar II (?-1278) are considered the most reputable members of this dynasty. Name suggested by J. Ticha, M. Tichy and Z. Moravec.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980610/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1984 WA1 = 1991 VF 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Nov-28 11:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin