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 ]  
12307 (1991 UA)
Classification: Outer Main-belt Asteroid          SPK-ID: 2012307
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2532254176986612 6.6009e-08  
a 3.985534395675879 5.7205e-08 AU
q 2.976295783578473 2.9052e-07 AU
i 2.345643926779861 7.584e-06 deg
node 352.0203300067428 0.00015389 deg
peri 27.92140680801735 0.00015502 deg
M 332.4987375673174 1.6844e-05 deg
tp 2457222.512996606322
(2015-Jul-19.01299661)
0.00013857 JED
period 2906.218540836625
7.96
6.257e-05
1.713e-07
d
yr
n .1238723086173572 2.6669e-09 deg/d
Q 4.994773007773285 7.1691e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      822  
   data-arc span      8448 days (23.13 yr)  
   first obs. used      1991-09-13  
   last obs. used      2014-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49632  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:17:02  

Additional Information
 Earth MOID = 1.97902 AU 
 T_jup = 2.997 
[ 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 12.8 mag n/a MPO302141  

12307 (1991 UA)          Discovered 1991-Oct-18 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 UA = 1995 FX15 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Nov-26 05:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin