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 ]  
9355 (1991 XO2)
Classification: Main-belt Asteroid          SPK-ID: 2009355
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2070251613105207 5.0876e-08  
a 2.362039174841381 1.255e-08 AU
q 1.873037633648075 1.1707e-07 AU
i 4.411850460553723 5.5015e-06 deg
node 223.4477233913152 8.4212e-05 deg
peri 199.0196170676411 8.5648e-05 deg
M 121.0913277076518 1.6174e-05 deg
tp 2456554.495119150705
(2013-Sep-18.99511915)
5.912e-05 JED
period 1325.955872689637
3.63
1.0568e-05
2.893e-08
d
yr
n .2715022478612034 2.1638e-09 deg/d
Q 2.851040716034687 1.5148e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      742  
   data-arc span      21592 days (59.12 yr)  
   first obs. used      1955-12-12  
   last obs. used      2015-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57314  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:26:03  

Additional Information
 Earth MOID = .886225 AU 
 T_jup = 3.517 
[ 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 14.7 mag n/a MPO236447  

9355 (1991 XO2)          Discovered 1991-Dec-05 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 19981005/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 XO2 = 1962 WX1 = 1962 XG1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Mar-06 17:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin