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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1408302544017233 3.7403e-08  
a 2.770889904302383 1.1235e-08 au
q 2.380664774160312 1.0568e-07 au
i 6.015837628178073 4.0158e-06 deg
node 213.0560630522778 3.3983e-05 deg
peri 147.9520490857968 3.645e-05 deg
M 51.73714864592153 1.1965e-05 deg
tp 2458758.381864057442
(2019-Oct-01.88186406)
5.5987e-05 TDB
period 1684.718451259138
4.61
1.0247e-05
2.805e-08
d
yr
n .213685556616858 1.2997e-09 deg/d
Q 3.161115034444455 1.2818e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1505  
   data-arc span      11760 days (32.20 yr)  
   first obs. used      1987-10-27  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50171  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 09:16:05  

Additional Information
 Earth MOID = 1.38066 au 
 Jupiter MOID = 2.31854 au 
 T_jup = 3.315 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456961.5 (2014-Oct-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .143372419452764 3.774e-08  
q 2.373042572729029 1.0694e-07 au
tp 2457068.753502913746
(2015-Feb-15.25350291)
5.4769e-05 TDB
node 213.1111538074306 3.4013e-05 deg
peri 146.9816559660944 3.6327e-05 deg
i 6.011963645544364 4.0196e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1505  
   data-arc span      11760 days (32.20 yr)  
   first obs. used      1987-10-27  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50171  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 09:16:05  

Additional Information
 Jupiter MOID = 2.31854 au 
 T_jup = 3.315 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.424301348632915E-15 -4.020096356758307E-15 5.771643243938443E-14 -7.628630601410097E-16 1.946266208075521E-14 -1.454995153179691E-15
q -4.020096356758307E-15 1.143616384724374E-14 -2.474558047364636E-13 2.410989469949352E-15 -7.66718212877301E-14 4.190273679074434E-15
tp 5.771643243938443E-14 -2.474558047364636E-13 2.99965882372382E-9 6.36555874713093E-13 7.112342794975607E-10 8.687910998716754E-13
node -7.628630601410097E-16 2.410989469949352E-15 6.36555874713093E-13 1.156887767517137E-9 -1.150149462835299E-9 -2.756378530232929E-11
peri 1.946266208075521E-14 -7.66718212877301E-14 7.112342794975607E-10 -1.150149462835299E-9 1.319648158189004E-9 2.760813684607061E-11
i -1.454995153179691E-15 4.190273679074434E-15 8.687910998716754E-13 -2.756378530232929E-11 2.760813684607061E-11 1.615687596469916E-11

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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