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11007 Granahan (1980 VA3)
Classification: Main-belt Asteroid          SPK-ID: 2011007
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .136203946615787 4.1187e-08  
a 2.235095191647749 5.5369e-09 au
q 1.930666405483357 9.2557e-08 au
i 3.19664467235713 4.4103e-06 deg
node 349.3865713557108 5.3706e-05 deg
peri 41.76193153071421 5.5419e-05 deg
M 309.7591879555961 1.2067e-05 deg
tp 2459170.832143923350
(2020-Nov-17.33214392)
4.0859e-05 TDB
period 1220.513150906289
3.34
4.5353e-06
1.242e-08
d
yr
n .2949579033480163 1.096e-09 deg/d
Q 2.539523977812141 6.2911e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2131  
   data-arc span      24518 days (67.13 yr)  
   first obs. used      1953-10-01  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45247  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:44:24  

Additional Information
 Earth MOID = .937316 au 
 Jupiter MOID = 2.88771 au 
 T_jup = 3.625 
[ 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 14.2   n/a MPO473916  
diameter diameter 3.586 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.82 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.344   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

11007 Granahan           Discovered 1980 Nov. 1 by S. J. Bus at Palomar.
James C. Granahan (b. 1965) is a scientist at Leidos Inc. whose research includes spectroscopic analysis of asteroids Gaspra and Ida using data from the Galileo spacecraft mission.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

[ show close-approach data ]
Alternate Designations
 1980 VA3 = 1980 TV12 = 1990 VF7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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