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JPL Small-Body Database Browser
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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1211650498353826 4.0274e-08  
a 2.627118948105479 1.1554e-08 au
q 2.3088039498348 1.0697e-07 au
i 1.090323091646844 4.1793e-06 deg
node 219.429310669727 0.00026083 deg
peri 1.877387336748199 0.0002617 deg
M 307.7089585705193 2.2838e-05 deg
tp 2458826.413832201830
(2019-Dec-08.91383220)
9.8923e-05 TDB
period 1555.313823732854
4.26
1.026e-05
2.809e-08
d
yr
n .2314645407934308 1.5269e-09 deg/d
Q 2.945433946376157 1.2954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1489  
   data-arc span      24926 days (68.24 yr)  
   first obs. used      1951-02-04  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51436  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:20:02  

Additional Information
 Earth MOID = 1.30055 au 
 Jupiter MOID = 2.02985 au 
 T_jup = 3.391 
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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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