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JPL Small-Body Database Browser
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237276 Nakama (2008 XD2)
Classification: Main-belt Asteroid          SPK-ID: 2237276
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1973962338712629 8.7347e-08  
a 2.553581831005674 3.0254e-08 au
q 2.049514394683071 2.2834e-07 au
i 14.07946720954265 9.3391e-06 deg
node 93.97484152029895 2.8768e-05 deg
peri 177.4873698009903 3.4107e-05 deg
M 88.26119242665072 2.15e-05 deg
tp 2458635.081621533622
(2019-May-31.58162153)
8.6544e-05 TDB
period 1490.469510223545
4.08
2.6488e-05
7.252e-08
d
yr
n .2415346288740963 4.2924e-09 deg/d
Q 3.057649267328278 3.6226e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      5870 days (16.07 yr)  
   first obs. used      2002-02-21  
   last obs. used      2018-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63889  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:11:41  

Additional Information
 Earth MOID = 1.03334 au 
 Jupiter MOID = 2.06501 au 
 T_jup = 3.370 
[ 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 15.7   n/a MPO437112  
diameter diameter 4.117 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

237276 Nakama           Discovered 2008 Dec. 2 by T. Seki at Geisei.
Nakama is a Japanese word meaning a group of persons who spontaneously come together and work for common purposes in education, community services, and other fields of work. The name was suggested by R. Sakamoto.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110517/MPCPages.arcLast Updated: 2011-06-24

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Alternate Designations
 2008 XD2 = 2006 DL114 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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