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295256 (2008 GW49)
Classification: Jupiter Trojan          SPK-ID: 2295256
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 .1087451044772903 6.0536e-08  
a 5.21444166728077 1.9316e-07 au
q 4.647396663381587 4.3996e-07 au
i 4.960868514762589 5.6345e-06 deg
node 103.9560007653489 8.1413e-05 deg
peri 225.4551175594197 8.99e-05 deg
M 283.2120461859891 4.4513e-05 deg
tp 2460128.185441923623
(2023-Jul-02.68544192)
0.00057272 TDB
period 4349.207688245081
11.91
0.00024166
6.616e-07
d
yr
n .08277369714327465 4.5993e-09 deg/d
Q 5.781486671179953 2.1416e-07 au
  Orbit Determination Parameters
   # obs. used (total)      257  
   data-arc span      6818 days (18.67 yr)  
   first obs. used      2001-10-24  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:50:03  

Additional Information
 Earth MOID = 3.63671 au 
 Jupiter MOID = .264616 au 
 T_jup = 2.981 
[ 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 13.47   n/a E2021B55  
diameter diameter 10.496 km 1.319 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.077   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

295256 (2008 GW49)          Discovered 2008-Apr-05 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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