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 ]  
18393 (1992 QB)
Classification: Main-belt Asteroid          SPK-ID: 2018393
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2268419317366597 6.9544e-08  
a 2.369795635586322 1.9706e-08 AU
q 1.832226615788815 1.6491e-07 AU
i 24.10836079968357 1.0435e-05 deg
node 55.64634867961329 1.7513e-05 deg
peri 243.5500891695633 2.9687e-05 deg
M 44.93008419975718 2.724e-05 deg
tp 2456834.197222921354
(2014-Jun-25.69722292)
0.0001001 JED
period 1332.492489489617
3.65
1.662e-05
4.55e-08
d
yr
n .2701703783245264 3.3699e-09 deg/d
Q 2.907364655383828 2.4176e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      538  
   data-arc span      14592 days (39.95 yr)  
   first obs. used      1974-08-22  
   last obs. used      2014-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55566  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:30:59  

Additional Information
 Earth MOID = .919358 AU 
 T_jup = 3.396 
[ 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 14.2 mag n/a MPO263511  

18393 (1992 QB)          Discovered 1992-Aug-19 by McNaught, R. H. at Siding Spring (413)
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Aug-29 16:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin