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 ]  
49345 (1998 WH4)
Classification: Main-belt Asteroid          SPK-ID: 2049345
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06220547133150306 4.7582e-08  
a 2.685067878739217 1.9853e-08 au
q 2.518041965785165 1.306e-07 au
i 4.310942336564107 5.1958e-06 deg
node 72.47460091926837 8.2542e-05 deg
peri 358.7914709198886 9.7649e-05 deg
M 314.4628790811189 5.4424e-05 deg
tp 2457603.779881453569
(2016-Aug-03.27988145)
0.00024363 JED
period 1607.057184261774
4.40
1.7824e-05
4.88e-08
d
yr
n .2240119415323553 2.4845e-09 deg/d
Q 2.852093791693269 2.1088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1060  
   data-arc span      7148 days (19.57 yr)  
   first obs. used      1996-05-11  
   last obs. used      2015-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54044  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 15:02:22  

Additional Information
 Earth MOID = 1.53167 au 
 Jupiter MOID = 2.32271 au 
 T_jup = 3.368 
[ 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 13.5 mag n/a MPO299295  

49345 (1998 WH4)          Discovered 1998-Nov-18 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 WH4 = 1996 LM4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-14 08:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin