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7863 Turnbull (1981 VK)
Classification: Main-belt Asteroid          SPK-ID: 2007863
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 .1761891707269203 3.6369e-08  
a 3.134213231765979 1.552e-08 au
q 2.58199880157979 1.1646e-07 au
i .7225807813692373 3.8213e-06 deg
node 23.36348089104811 0.00029892 deg
peri 327.3369484375634 0.00029911 deg
M 28.34200220684275 9.9548e-06 deg
tp 2458840.941750431846
(2019-Dec-23.44175043)
5.6016e-05 TDB
period 2026.708255306925
5.55
1.5054e-05
4.122e-08
d
yr
n .177627933895933 1.3194e-09 deg/d
Q 3.686427661952167 1.8255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2077  
   data-arc span      14269 days (39.07 yr)  
   first obs. used      1981-10-23  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:32:48  

Additional Information
 Earth MOID = 1.5762 au 
 Jupiter MOID = 1.74556 au 
 T_jup = 3.188 
[ 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 13.3   n/a MPO435774  
diameter diameter 11.745 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.905 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.081   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7863 Turnbull           Discovered 1981 Nov. 2 by B. A. Skiff at the Anderson Mesa Station of the Lowell Observatory.
Margaret A. ("Maggie") Turnbull (b. 1975), a graduate student in astronomy, has among her goals the study of the nature of life and intelligence as part of the universe.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990928/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1981 VK = 1986 QV5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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