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7170 Livesey (1987 MK)
Classification: Main-belt Asteroid          SPK-ID: 2007170
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1823822837574163 4.2812e-08  
a 2.699305991871131 1.1758e-08 au
q 2.207000400513597 1.1576e-07 au
i 12.47647056539918 5.1383e-06 deg
node 330.5700511720154 1.6246e-05 deg
peri 29.42434930051185 2.0075e-05 deg
M 117.5416885517448 1.186e-05 deg
tp 2458471.609179378803
(2018-Dec-19.10917938)
5.2845e-05 TDB
period 1619.856731425223
4.43
1.0584e-05
2.898e-08
d
yr
n .2222418767141559 1.4521e-09 deg/d
Q 3.191611583228666 1.3903e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2403  
   data-arc span      15240 days (41.72 yr)  
   first obs. used      1978-08-07  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .394  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:43:10  

Additional Information
 Earth MOID = 1.21075 au 
 Jupiter MOID = 2.27854 au 
 T_jup = 3.311 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO502221  
diameter diameter 9.688 km 0.332 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.188   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

7170 Livesey           Discovered 1987 June 30 by R. H. McNaught at Siding Spring.
Ron Livesey (b. 1929) has had a major influence on amateur astronomy, particularly in his native Scotland. He has been a key figure in organizing astronomical societies and observational programs, particularly of aurorae.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070106/MPCPages.arcLast Updated: 2007-01-09

Alternate Designations
 1987 MK = 1978 PU4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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