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475234 (2005 WH)
Classification: Main-belt Asteroid          SPK-ID: 2475234
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .174066626675631 1.2127e-07  
a 3.100428138343233 5.1957e-08 au
q 2.56074707105162 3.7491e-07 au
i 16.17077531904572 1.3817e-05 deg
node 252.0567886652643 3.2843e-05 deg
peri 126.6528722254209 4.6156e-05 deg
M 256.2326898262433 3.5043e-05 deg
tp 2459575.263247471155
(2021-Dec-26.76324747)
0.00020327 TDB
period 1994.026526688805
5.46
5.0124e-05
1.372e-07
d
yr
n .1805392231154521 4.5383e-09 deg/d
Q 3.640109205634846 6.1001e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      15210 days (41.64 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52541  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:43:15  

Additional Information
 Earth MOID = 1.60143 au 
 Jupiter MOID = 1.93624 au 
 T_jup = 3.138 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457818.5 (2017-Mar-06.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1752836253636406 1.2157e-07  
q 2.554730549955173 3.75e-07 au
tp 2457586.375053324449
(2016-Jul-16.87505332)
0.00017286 TDB
node 252.0497373714167 3.2842e-05 deg
peri 127.1462787076706 4.5889e-05 deg
i 16.17630270791134 1.3825e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      15210 days (41.64 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52541  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:43:15  

Additional Information
 Jupiter MOID = 1.93624 au 
 T_jup = 3.138 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.47804610637428E-14 -4.529237005878327E-14 9.994043717435391E-12 -1.200098374898029E-13 1.808707101526221E-12 1.690254732754764E-14
q -4.529237005878327E-14 1.406218434361903E-13 -2.756929848748005E-11 3.575399007154511E-13 -4.975442711006417E-12 -5.030077329403904E-14
tp 9.994043717435391E-12 -2.756929848748005E-11 2.987898067242722E-8 -1.505872341752775E-10 5.630105164561791E-9 1.490459812320691E-11
node -1.200098374898029E-13 3.575399007154511E-13 -1.505872341752775E-10 1.078583705539309E-9 -1.061440892923774E-9 -1.564739434238354E-10
peri 1.808707101526221E-12 -4.975442711006417E-12 5.630105164561791E-9 -1.061440892923774E-9 2.105819424095966E-9 1.526983812268128E-10
i 1.690254732754764E-14 -5.030077329403904E-14 1.490459812320691E-11 -1.564739434238354E-10 1.526983812268128E-10 1.911417486137839E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO477234  
diameter diameter 4.243 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

475234 (2005 WH)          Discovered 2005-Nov-19 by Lowe, A. at Mayhill
Reference: Last Updated: 2016-11-20

[ show close-approach data ]
Alternate Designations
 2005 WH = 1978 WZ13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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