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117327 (2004 WD9)
Classification: Main-belt Asteroid          SPK-ID: 2117327
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1437355653602189 6.3069e-08  
a 2.595689216349096 1.8304e-08 au
q 2.222596359337735 1.6892e-07 au
i 6.965944440268457 6.4088e-06 deg
node 304.074520217897 3.9213e-05 deg
peri 193.5469243917983 4.4047e-05 deg
M 98.15582732840298 1.6998e-05 deg
tp 2458184.022970346318
(2018-Mar-06.52297035)
7.2378e-05 TDB
period 1527.48680089766
4.18
1.6157e-05
4.424e-08
d
yr
n .2356812509204259 2.4929e-09 deg/d
Q 2.968782073360457 2.0934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      8292 days (22.70 yr)  
   first obs. used      1995-09-01  
   last obs. used      2018-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58667  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 04:36:04  

Additional Information
 Earth MOID = 1.23747 au 
 Jupiter MOID = 2.07761 au 
 T_jup = 3.392 
[ 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 15.4   n/a MPO436563  
diameter diameter 2.562 km 1.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.269   0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117327 (2004 WD9)          Discovered 2004-Nov-19 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2004 WD9 = 1995 RP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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