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27930 Nakamatsu (1997 GN6)
Classification: Main-belt Asteroid          SPK-ID: 2027930
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04683156502707605 6.3411e-08  
a 2.564214508432283 1.2751e-08 au
q 2.444128329937265 1.6092e-07 au
i 6.826619539006694 5.9721e-06 deg
node 212.1070180561443 3.0828e-05 deg
peri 192.2586873323127 7.0667e-05 deg
M 301.4688259508853 5.9048e-05 deg
tp 2458844.345469615464
(2019-Dec-26.84546962)
0.00024541 TDB
period 1499.788283554769
4.11
1.1187e-05
3.063e-08
d
yr
n .2400338794131229 1.7904e-09 deg/d
Q 2.684300686927302 1.3348e-08 au
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      8275 days (22.66 yr)  
   first obs. used      1997-04-02  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50673  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:09:25  

Additional Information
 Earth MOID = 1.45203 au 
 Jupiter MOID = 2.5033 au 
 T_jup = 3.422 
[ 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 15.3   n/a MPO452561  
diameter diameter 4.671 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27930 Nakamatsu           Discovered 1997 Apr. 2 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Kathy Nakamatsu mentored a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors. She teaches at the Saratoga High School, Saratoga, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

[ show close-approach data ]
Alternate Designations
 1997 GN6 = 2001 FU161 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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