Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
237276 Nakama (2008 XD2)
Classification: Main-belt Asteroid          SPK-ID: 2237276
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1970526067443863 6.9525e-08  
a 2.554487050226404 2.2335e-08 au
q 2.051118718084513 1.7476e-07 au
i 14.07777794967616 6.6824e-06 deg
node 93.97844665609811 2.0484e-05 deg
peri 177.5498544544657 2.4556e-05 deg
M 183.8198400937608 1.8251e-05 deg
tp 2460126.307772023270
(2023-Jun-30.80777202)
8.2031e-05 TDB
period 1491.262115258603
4.08
1.9558e-05
5.355e-08
d
yr
n .2414062533450544 3.1661e-09 deg/d
Q 3.057855382368295 2.6736e-08 au
  Orbit Determination Parameters
   # obs. used (total)      445  
   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      .5391  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:42:52  

Additional Information
 Earth MOID = 1.03483 au 
 Jupiter MOID = 2.063 au 
 T_jup = 3.370 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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

Alternate Designations
 2008 XD2 = 2006 DL114 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-06 04:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin