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101781 Gojira (1999 GU9)
Classification: Main-belt Asteroid          SPK-ID: 2101781
[ 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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1395986698770723 5.8947e-08  
a 2.539725823003753 1.0946e-08 au
q 2.185183476259977 1.5251e-07 au
i 15.3083884140906 6.4214e-06 deg
node 181.3930593965941 1.5542e-05 deg
peri 248.1906299141458 2.8863e-05 deg
M 203.7124028001433 2.3272e-05 deg
tp 2459642.301447852791
(2022-Mar-03.80144785)		 9.7333e-05 TDB
period 1478.354811044575
4.05		 9.5576e-06
2.617e-08		 d
yr
n .2435139367833027 1.5743e-09 deg/d
Q 2.89426816974753 1.2474e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1455  
   data-arc span      7864 days (21.53 yr)  
   first obs. used      1999-03-24  
   last obs. used      2020-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49489  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:33  

Additional Information
 Earth MOID = 1.24581 au 
 Jupiter MOID = 2.52362 au 
 T_jup = 3.383 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456794.5 (2014-May-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1406508542307597 5.8636e-08  
q 2.181850684455962 1.514e-07 au
tp 2456689.487721718665
(2014-Jan-31.98772172)		 9.0276e-05 TDB
node 181.470181146206 1.5546e-05 deg
peri 248.591294915439 2.8778e-05 deg
i 15.30598705045123 6.4222e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1455  
   data-arc span      7864 days (21.53 yr)  
   first obs. used      1999-03-24  
   last obs. used      2020-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49489  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:33  

Additional Information
 Jupiter MOID = 2.52362 au 
 T_jup = 3.383 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.438208751111926E-15 -8.861161105636501E-15 -3.927320920834982E-12 2.142409379263835E-14 -1.094801020720198E-12 -1.811326391169168E-14
q -8.861161105636501E-15 2.292145550841032E-14 1.015073266803741E-11 -5.558352919208229E-14 2.830000084223503E-12 4.704136845228703E-14
tp -3.927320920834982E-12 1.015073266803741E-11 8.149790338789688E-9 -2.453031115124894E-11 2.200675239598422E-9 2.945606394302001E-11
node 2.142409379263835E-14 -5.558352919208229E-14 -2.453031115124894E-11 2.416902161388222E-10 -2.391834066365993E-10 4.753919610247805E-11
peri -1.094801020720198E-12 2.830000084223503E-12 2.200675239598422E-9 -2.391834066365993E-10 8.281644036456145E-10 -3.796003654394247E-11
i -1.811326391169168E-14 4.704136845228703E-14 2.945606394302001E-11 4.753919610247805E-11 -3.796003654394247E-11 4.124501531445039E-11

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO474892  
diameter diameter 4.406 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.203   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101781 Gojira           Discovered 1999 Apr. 14 by R. A. Tucker at Goodricke-Pigott.
Gojira, known worldwide as Godzilla, debuted November 3, 1954, in the Japanese motion picture "Gojira", directed by Ishiro Honda. Gojira is a kaiju (fantastic creature) that has appeared in more than 30 movies. The character, now a pop-culture icon, may be the most recognizable fantasy creature ever.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-05-29Last Updated: 2018-09-17
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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