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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1282181569811549 2.1702e-07  
a 2.583203429123758 4.8328e-08 au
q 2.251989846334111 5.849e-07 au
i 13.34222827558099 1.0876e-05 deg
node 260.1114142123039 4.0981e-05 deg
peri 152.7072265199782 7.1609e-05 deg
M 214.1979009976743 5.4924e-05 deg
tp 2459614.682750682475
(2022-Feb-04.18275068)
0.00024169 TDB
period 1516.478787058916
4.15
4.2557e-05
1.165e-07
d
yr
n .2373920446973017 6.662e-09 deg/d
Q 2.914417011913406 5.4525e-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 = 1.27218 au 
 Jupiter MOID = 2.42133 au 
 T_jup = 3.374 
[ 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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