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249228 (2008 GH4)
Classification: Main-belt Asteroid          SPK-ID: 2249228
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2752865587542362 4.5561e-08  
a 2.558975620897264 3.1047e-08 au
q 1.854524028284471 1.089e-07 au
i 13.22744025994585 4.7404e-06 deg
node 287.2063253745732 3.4014e-05 deg
peri 14.35971233902088 3.9288e-05 deg
M 189.7435511015641 2.2185e-05 deg
tp 2459307.629115986804
(2021-Apr-03.12911599)
9.7117e-05 TDB
period 1495.194357701584
4.09
2.721e-05
7.45e-08
d
yr
n .2407713740663073 4.3817e-09 deg/d
Q 3.263427213510057 3.9593e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      6315 days (17.29 yr)  
   first obs. used      2001-10-25  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48745  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 14:44:41  

Additional Information
 Earth MOID = .840834 au 
 Jupiter MOID = 1.98413 au 
 T_jup = 3.346 
[ 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 15.3   n/a MPO235326  
diameter diameter 5.039 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249228 (2008 GH4)          Discovered 2008-Apr-07 by Tozzi, F. at Grove Creek
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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