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JPL Small-Body Database Browser
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487800 (2015 SE4)
Classification: Main-belt Asteroid          SPK-ID: 2487800
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201076958206835 6.6502e-08  
a 2.563622727578907 5.0067e-08 au
q 2.255711908815868 1.9533e-07 au
i 25.98215599421517 3.3259e-05 deg
node 336.8386774779844 2.1098e-05 deg
peri 105.4247940105621 0.00017867 deg
M 347.2654028322943 0.0001726 deg
tp 2459053.534967532698
(2020-Jul-23.03496753)
0.00071912 TDB
period 1499.269121773949
4.10
4.3921e-05
1.202e-07
d
yr
n .2401169975234632 7.0341e-09 deg/d
Q 2.871533546341945 5.608e-08 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      4360 days (11.94 yr)  
   first obs. used      2007-11-21  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51944  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:48:31  

Additional Information
 Earth MOID = 1.38204 au 
 Jupiter MOID = 2.36646 au 
 T_jup = 3.283 
[ 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 16.7   n/a MPO456352  
diameter diameter 4.070 km 0.695 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.141   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

487800 (2015 SE4)          Discovered 2013-Jan-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 SE4 = 2010 GX165 = 2013 EM91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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