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6580 Philbland (1981 EW21)
Classification: Main-belt Asteroid          SPK-ID: 2006580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216718096209597 3.9093e-08  
a 2.628520090972811 1.0973e-08 au
q 2.3087032948791 1.0335e-07 au
i 1.089984078621787 4.106e-06 deg
node 219.4162559667475 0.00025791 deg
peri 1.996570070788521 0.00025876 deg
M 40.17620425124787 2.2308e-05 deg
tp 2458826.787215939328
(2019-Dec-09.28721594)
9.6312e-05 TDB
period 1556.558252013061
4.26
9.7467e-06
2.669e-08
d
yr
n .2312794908474645 1.4482e-09 deg/d
Q 2.948336887066523 1.2308e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1541  
   data-arc span      25336 days (69.37 yr)  
   first obs. used      1951-02-04  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52314  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:32:29  

Additional Information
 Earth MOID = 1.30032 au 
 Jupiter MOID = 2.02635 au 
 T_jup = 3.390 
[ 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 14.4   n/a MPO337310  
diameter diameter 7.430 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6580 Philbland           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Philip A. Bland (b. 1969), a research scientist at London's Imperial College, is involved in a variety of planetary and meteoritical studies. His fireball camera network offers an important glimpse into links between meteorites and minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

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