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JPL Small-Body Database Browser
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437404 (2013 WQ77)
Classification: Main-belt Asteroid          SPK-ID: 2437404
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1290264228541493 2.1653e-07  
a 2.581428722326519 4.8038e-08 au
q 2.248356208431771 5.8227e-07 au
i 13.34513984168946 1.0883e-05 deg
node 260.1086918697245 4.0982e-05 deg
peri 152.7696368809768 7.1311e-05 deg
M 119.1014528248945 5.3088e-05 deg
tp 2458099.309082552189
(2017-Dec-11.80908255)
0.0002165 TDB
period 1514.916283569456
4.15
4.2287e-05
1.158e-07
d
yr
n .2376368938036401 6.6333e-09 deg/d
Q 2.914501236221267 5.4236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      6292 days (17.23 yr)  
   first obs. used      2002-02-08  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47853  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:09:55  

Additional Information
 Earth MOID = 1.2682 au 
 Jupiter MOID = 2.42131 au 
 T_jup = 3.375 
[ 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 16.5   n/a MPO336293  
diameter diameter 3.145 km 0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.085   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

437404 (2013 WQ77)          Discovered 2009-Nov-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-06-04

Alternate Designations
 2013 WQ77 = 2010 EA47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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