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56197 (1999 GF8)
Classification: Main-belt Asteroid          SPK-ID: 2056197
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1408302539175883 3.7375e-08  
a 2.770889904442988 1.1222e-08 au
q 2.3806647756226 1.0559e-07 au
i 6.01583758540164 4.0154e-06 deg
node 213.0560646524933 3.3918e-05 deg
peri 147.952047587661 3.6388e-05 deg
M 51.73714849211166 1.1953e-05 deg
tp 2458758.381864758809
(2019-Oct-01.88186476)
5.5937e-05 TDB
period 1684.718451387371
4.61
1.0235e-05
2.802e-08
d
yr
n .2136855566005933 1.2982e-09 deg/d
Q 3.161115033263375 1.2803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1517  
   data-arc span      11787 days (32.27 yr)  
   first obs. used      1987-10-27  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50066  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 11:44:12  

Additional Information
 Earth MOID = 1.38066 au 
 Jupiter MOID = 2.31854 au 
 T_jup = 3.315 
[ 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 14.1   n/a MPO452933  
diameter diameter 7.926 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56197 (1999 GF8)          Discovered 1999-Apr-09 by LONEOS at Anderson Mesa
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 GF8 = 1987 UR6 = 2001 QT78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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