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 ]  
8256 Shenzhou (1981 UZ9)
Classification: Mars-crossing Asteroid          SPK-ID: 2008256
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2490694600810538 5.0239e-08  
a 2.19779875722406 6.7973e-09 au
q 1.650394207395453 1.0848e-07 au
i 6.852726899804499 4.0282e-06 deg
node 42.26233527037584 3.543e-05 deg
peri 21.42699738511905 3.7089e-05 deg
M 167.4556186663462 8.4369e-06 deg
tp 2458046.923640370086
(2017-Oct-20.42364037)
2.7738e-05 TDB
period 1190.091386923527
3.26
5.521e-06
1.512e-08
d
yr
n .3024977778644599 1.4033e-09 deg/d
Q 2.745203307052668 8.4902e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1619  
   data-arc span      13717 days (37.56 yr)  
   first obs. used      1981-10-22  
   last obs. used      2019-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46463  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:34:19  

Additional Information
 Earth MOID = .665157 au 
 Jupiter MOID = 2.59956 au 
 T_jup = 3.617 
[ 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 13.6   n/a MPO337325  
rotation period rot_per 3.395 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Crawford, G. (2008) Minor Planet Bull. 35, 15.]
[Higgins, D.J. (2011) http://www.david-higgins.com/Astronomy/asteroid/lightcurves.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2015) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2017) http://www.asu.cas.cz/~ppravec/neo.htm]
[Benishek, V. (2018) Minor Planet Bull. 45, 187-189.]
[Stephens, R.D. (2018) Minor Planet Bull. 45, 299-301.]

8256 Shenzhou           Discovered 1981 Oct. 25 at the Purple Mountain Observatory.
Shenzhou, meaning "Miracle Ship", is the name of the first series of Chinese manned spaceships.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041126/MPCPages.arcLast Updated: 2004-12-06

Alternate Designations
 1981 UZ9 = 1994 TO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin