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 ]  
330820 (2008 WH62)
Classification: Main-belt Asteroid          SPK-ID: 2330820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .210074986627977 6.464e-08  
a 3.118555897720517 3.519e-08 au
q 2.463425309208281 2.0302e-07 au
i 20.53843285807313 8.6697e-06 deg
node 243.7763322577082 1.9862e-05 deg
peri 107.4701663766748 2.7886e-05 deg
M 90.18847666503478 1.9753e-05 deg
tp 2458496.561804082508
(2019-Jan-13.06180408)
0.00010717 TDB
period 2011.540245924022
5.51
3.4047e-05
9.322e-08
d
yr
n .1789673364624282 3.0292e-09 deg/d
Q 3.773686486232754 4.2582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      6290 days (17.22 yr)  
   first obs. used      2002-09-16  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53083  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 19:44:45  

Additional Information
 Earth MOID = 1.54934 au 
 Jupiter MOID = 2.08772 au 
 T_jup = 3.086 
[ 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 15.3   n/a MPO271138  
diameter diameter 6.725 km 3.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 91.363 h n/a LCDB (Rev. 2019-August); 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.]
geometric albedo albedo 0.036   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

330820 (2008 WH62)          Discovered 2008-Nov-24 by Lowe, A. at Mayhill
Reference: 20120604/Numbers.arcLast Updated: 2012-06-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-14 03:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin