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JPL Small-Body Database Browser
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172778 (2004 EE64)
Classification: Main-belt Asteroid          SPK-ID: 2172778
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04845766252728636 5.0072e-08  
a 3.085100099453537 2.9619e-08 au
q 2.93560335997132 1.6205e-07 au
i 9.35398117416713 6.6292e-06 deg
node 42.33636457684146 3.6863e-05 deg
peri 68.00919327645705 0.00012137 deg
M 44.72209002607736 0.00010898 deg
tp 2458754.620734417769
(2019-Sep-28.12073442)
0.0006 TDB
period 1979.257578480552
5.42
2.8503e-05
7.804e-08
d
yr
n .1818863820020671 2.6193e-09 deg/d
Q 3.234596838935754 3.1054e-08 au
  Orbit Determination Parameters
   # obs. used (total)      412  
   data-arc span      7595 days (20.79 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62407  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 21:47:38  

Additional Information
 Earth MOID = 1.96846 au 
 Jupiter MOID = 1.86138 au 
 T_jup = 3.204 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO493966  
diameter diameter 3.797 km 1.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.134   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172778 (2004 EE64)          Discovered 2004-Mar-14 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2004 EE64 = 1999 FC80 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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