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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1972443915208876 6.9532e-08  
a 2.554031775505184 2.2332e-08 au
q 2.050263332020652 1.7474e-07 au
i 14.07896881747262 6.6837e-06 deg
node 93.97717512648209 2.0488e-05 deg
peri 177.5262536644491 2.4558e-05 deg
M 136.5266866087601 1.7869e-05 deg
tp 2458635.103753883128
(2019-May-31.60375388)
6.9675e-05 TDB
period 1490.863461627536
4.08
1.9554e-05
5.354e-08
d
yr
n .2414708048495585 3.167e-09 deg/d
Q 3.057800218989716 2.6737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      6903 days (18.90 yr)  
   first obs. used      2002-02-21  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60384  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:19:03  

Additional Information
 Earth MOID = 1.03227 au 
 Jupiter MOID = 2.06413 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 15.91   n/a MPCxxxxx  
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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