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39877 (1998 EQ6)
Classification: Main-belt Asteroid          SPK-ID: 2039877
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2046392172058694 3.5041e-08  
a 2.378968648652795 1.154e-08 au
q 1.892138366635182 8.594e-08 au
i 1.821479977132068 4.64e-06 deg
node 319.7421127989389 0.00013202 deg
peri 331.642754286407 0.00013289 deg
M 279.0215219076429 1.8949e-05 deg
tp 2459301.973133181360
(2021-Mar-28.47313318)
7.1859e-05 TDB
period 1340.236696243035
3.67
9.7515e-06
2.67e-08
d
yr
n .2686092695485473 1.9544e-09 deg/d
Q 2.865798930670408 1.3901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      818  
   data-arc span      10625 days (29.09 yr)  
   first obs. used      1991-03-25  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55463  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:46:57  

Additional Information
 Earth MOID = .87617 au 
 Jupiter MOID = 2.32253 au 
 T_jup = 3.510 
[ 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 15.6   n/a MPO431950  
diameter diameter 1.663 km 0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.484   0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39877 (1998 EQ6)          Discovered 1998-Mar-01 by ODAS at Caussols
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 EQ6 = 1999 TN28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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