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 ]  
11961 (1994 PO)
Classification: Main-belt Asteroid          SPK-ID: 2011961
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1025891157385795 7.7645e-08  
a 2.573249872080735 2.217e-08 AU
q 2.309262443129559 1.9864e-07 AU
i 12.34719587083916 8.3052e-06 deg
node 317.178424253648 3.4606e-05 deg
peri 243.22999616 5.5306e-05 deg
M 76.62008891031635 4.5834e-05 deg
tp 2456679.606058623809
(2014-Jan-22.10605862)
0.00019128 JED
period 1507.722328939697
4.13
1.9485e-05
5.335e-08
d
yr
n .2387707557884145 3.0857e-09 deg/d
Q 2.83723730103191 2.4444e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      870  
   data-arc span      10182 days (27.88 yr)  
   first obs. used      1986-09-29  
   last obs. used      2014-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45689  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:59:16  

Additional Information
 Earth MOID = 1.33979 AU 
 T_jup = 3.389 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO263456  

11961 (1994 PO)          Discovered 1994-Aug-03 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 PO = 1986 SF1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-25 01:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin