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JPL Small-Body Database Browser
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379330 (2009 WP71)
Classification: Main-belt Asteroid          SPK-ID: 2379330
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09907394810902935 7.529e-08  
a 2.656689959251378 4.8437e-08 au
q 2.393481196086728 2.1892e-07 au
i 10.19269376652734 7.365e-06 deg
node 234.0748963221036 4.2854e-05 deg
peri 127.0371491077681 5.5925e-05 deg
M 115.7916190842907 3.5397e-05 deg
tp 2458091.773496158969
(2017-Dec-04.27349616)
0.00015486 TDB
period 1581.647642818197
4.33
4.3255e-05
1.184e-07
d
yr
n .2276107460689209 6.2247e-09 deg/d
Q 2.919898722416028 5.3235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      5714 days (15.64 yr)  
   first obs. used      2003-05-10  
   last obs. used      2018-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53087  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:44:53  

Additional Information
 Earth MOID = 1.40714 au 
 Jupiter MOID = 2.52071 au 
 T_jup = 3.358 
[ show covariance matrix ]

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 16.5   n/a MPO423395  
diameter diameter 2.690 km 0.551 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

379330 (2009 WP71)          Discovered 2009-Oct-21 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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