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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04712960193337615 6.3123e-08  
a 2.564960824736621 1.2616e-08 au
q 2.44407524209208 1.6042e-07 au
i 6.825686309339315 5.9662e-06 deg
node 212.1055870323366 3.0235e-05 deg
peri 192.1801180995836 6.9989e-05 deg
M 37.54070493984994 5.8341e-05 deg
tp 2458844.034189448082
(2019-Dec-26.53418945)
0.00024353 TDB
period 1500.443102731881
4.11
1.107e-05
3.031e-08
d
yr
n .239929124499651 1.7702e-09 deg/d
Q 2.685846407381162 1.3211e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1001  
   data-arc span      8276 days (22.66 yr)  
   first obs. used      1997-04-02  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50437  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:42:47  

Additional Information
 Earth MOID = 1.45257 au 
 Jupiter MOID = 2.50194 au 
 T_jup = 3.421 
[ 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 15.4   n/a MPO502367  
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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