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 ]  
279754 (1998 UB18)
Classification: Main-belt Asteroid          SPK-ID: 2279754
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1864365276897365 9.8678e-08  
a 2.274968460960783 2.4836e-08 au
q 1.850831240495591 2.2718e-07 au
i 6.253077800548811 6.5428e-06 deg
node 272.3897202429416 8.3828e-05 deg
peri 55.16684305514759 8.8407e-05 deg
M 105.6846895708517 2.1205e-05 deg
tp 2457232.565025250106
(2015-Jul-29.06502525)
7.6156e-05 JED
period 1253.318635346534
3.43
2.0524e-05
5.619e-08
d
yr
n .2872374110199539 4.7036e-09 deg/d
Q 2.699105681425975 2.9466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      6253 days (17.12 yr)  
   first obs. used      1998-10-19  
   last obs. used      2015-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60707  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 22:24:14  

Additional Information
 Earth MOID = .846806 au 
 Jupiter MOID = 2.63308 au 
 T_jup = 3.579 
[ 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 16.8 mag n/a MPO348755  

279754 (1998 UB18)          Discovered 1998-Oct-19 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20110615/Numbers.arcLast Updated: 2011-06-23

[ show close-approach data ]
Alternate Designations
 1998 UB18 = 2005 UC7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-May-02 19:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin