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79987 (1999 EJ10)
Classification: Main-belt Asteroid          SPK-ID: 2079987
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1183969712559237 4.3455e-08  
a 2.806501223866716 1.3038e-08 au
q 2.474219979134853 1.2742e-07 au
i 5.377431239768336 5.8092e-06 deg
node 343.5545688636738 3.433e-05 deg
peri 66.97662262381273 4.1981e-05 deg
M 13.24668817487681 2.3441e-05 deg
tp 2459333.309601639292
(2021-Apr-28.80960164)
0.00011175 TDB
period 1717.300438384197
4.70
1.1967e-05
3.276e-08
d
yr
n .2096313446112684 1.4608e-09 deg/d
Q 3.138782468598578 1.4581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      977  
   data-arc span      18221 days (49.89 yr)  
   first obs. used      1971-03-25  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49601  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:10:16  

Additional Information
 Earth MOID = 1.49 au 
 Jupiter MOID = 2.23115 au 
 T_jup = 3.306 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457365.5 (2015-Dec-09.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1207495242335594 4.4312e-08  
q 2.468068959686609 1.3045e-07 au
tp 2457606.914389936388
(2016-Aug-06.41438994)
0.00010541 TDB
node 343.8941128119593 3.4315e-05 deg
peri 65.10142260049483 4.1429e-05 deg
i 5.378856353712488 5.8123e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      977  
   data-arc span      18221 days (49.89 yr)  
   first obs. used      1971-03-25  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49601  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:10:16  

Additional Information
 Jupiter MOID = 2.23115 au 
 T_jup = 3.306 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.963557112400868E-15 -5.762785276822172E-15 -2.113584935666031E-12 7.027765812843538E-15 -3.869585181171933E-13 -2.955140731204578E-15
q -5.762785276822172E-15 1.701850089867447E-14 6.09249683333981E-12 -2.084432314641209E-14 1.106307001157026E-12 9.327033305503367E-15
tp -2.113584935666031E-12 6.09249683333981E-12 1.111181513556154E-8 -1.107306071203023E-11 2.444974002691863E-9 6.992847699193956E-12
node 7.027765812843538E-15 -2.084432314641209E-14 -1.107306071203023E-11 1.177519515144267E-9 -1.174081181083647E-9 3.923304613995838E-11
peri -3.869585181171933E-13 1.106307001157026E-12 2.444974002691863E-9 -1.174081181083647E-9 1.716382045373536E-9 -3.775324455885863E-11
i -2.955140731204578E-15 9.327033305503367E-15 6.992847699193956E-12 3.923304613995838E-11 -3.775324455885863E-11 3.378340101140889E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.89   n/a E2021B10  
diameter diameter 5.786 km 0.323 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79987 (1999 EJ10)          Discovered 1999-Mar-14 by Spacewatch at Kitt Peak
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1999 EJ10 = 1999 CU135 = 2001 QX8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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