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37938 (1998 GH9)
Classification: Main-belt Asteroid          SPK-ID: 2037938
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05963556808739044 4.349e-08  
a 2.661102896618025 1.6751e-08 au
q 2.502406513639209 1.1876e-07 au
i 14.06267179911405 4.5606e-06 deg
node 100.8949990945783 2.0451e-05 deg
peri 155.0409577811565 6.0904e-05 deg
M 348.6986924205913 6.0957e-05 deg
tp 2459050.275670928270
(2020-Jul-19.77567093)
0.00026865 TDB
period 1585.5901105485
4.34
1.4971e-05
4.099e-08
d
yr
n .2270448066022977 2.1438e-09 deg/d
Q 2.819799279596841 1.775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1178  
   data-arc span      7971 days (21.82 yr)  
   first obs. used      1998-04-02  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:41:17  

Additional Information
 Earth MOID = 1.49197 au 
 Jupiter MOID = 2.28156 au 
 T_jup = 3.340 
[ 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 14.1   n/a MPO474235  
diameter diameter 3.520 km 0.716 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.431   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37938 (1998 GH9)          Discovered 1998-Apr-02 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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