Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
187427 (2005 WH6)
Classification: Main-belt Asteroid          SPK-ID: 2187427
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1461274940399737 4.0013e-08  
a 2.979432125600066 1.7929e-08 au
q 2.544055175423936 1.1739e-07 au
i 11.03395067005628 5.1465e-06 deg
node 242.2002184852762 2.0169e-05 deg
peri 94.02265301622259 2.9891e-05 deg
M 46.6528212707178 1.8873e-05 deg
tp 2458957.070009174303
(2020-Apr-17.57000917)
9.8662e-05 TDB
period 1878.44581121305
5.14
1.6955e-05
4.642e-08
d
yr
n .1916477961999455 1.7298e-09 deg/d
Q 3.414809075776196 2.0548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      804  
   data-arc span      7884 days (21.59 yr)  
   first obs. used      1999-07-12  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48082  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:55:23  

Additional Information
 Earth MOID = 1.56332 au 
 Jupiter MOID = 2.05844 au 
 T_jup = 3.216 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.89   n/a E2021B55  
rotation period rot_per 7.859 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

187427 (2005 WH6)          Discovered 2005-Nov-21 by CSS at Catalina
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2005 WH6 = 1999 NM55 = 2004 TZ358 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-15 15:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin