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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1864355596821784 1.009e-07  
a 2.275126963967564 3.6315e-08 AU
q 1.850962395092256 2.3597e-07 AU
i 6.253059686757799 1.3515e-05 deg
node 272.3975649666116 9.6192e-05 deg
peri 55.25400082503128 0.00010407 deg
M 293.2853766262474 4.5686e-05 deg
tp 2457232.787275992008
(2015-Jul-29.28727599)
0.00016181 JED
period 1253.449620612303
3.43
3.0011e-05
8.217e-08
d
yr
n .2872073947608219 6.8764e-09 deg/d
Q 2.699291532842872 4.3085e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      6089 days (16.67 yr)  
   first obs. used      1998-10-19  
   last obs. used      2015-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .73976  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 16:30:12  

Additional Information
 Earth MOID = .848317 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 16.7 mag n/a MPO254496  

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 2015-Aug-03 13:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin