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91327 (1999 GK53)
Classification: Main-belt Asteroid          SPK-ID: 2091327
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08888622666436675 3.8877e-08  
a 2.381013523669484 9.208e-09 au
q 2.169374215913675 9.2849e-08 au
i 7.147802900220851 4.0453e-06 deg
node 347.8288757909024 2.886e-05 deg
peri 189.344524839184 3.6345e-05 deg
M 296.5777868369493 2.2909e-05 deg
tp 2459236.917767654855
(2021-Jan-22.41776765)
8.5872e-05 TDB
period 1341.965095682476
3.67
7.7846e-06
2.131e-08
d
yr
n .268263311138444 1.5562e-09 deg/d
Q 2.592652831425292 1.0027e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1384  
   data-arc span      7601 days (20.81 yr)  
   first obs. used      1999-04-11  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4927  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:27:50  

Additional Information
 Earth MOID = 1.17396 au 
 Jupiter MOID = 2.37435 au 
 T_jup = 3.522 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457220.5 (2015-Jul-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08870953595287424 3.8924e-08  
q 2.169792331967519 9.2921e-08 au
tp 2456554.856219212767
(2013-Sep-19.35621921)
8.2014e-05 TDB
node 347.8720634570568 2.8834e-05 deg
peri 189.7309224453116 3.6347e-05 deg
i 7.151566452845797 4.0467e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1384  
   data-arc span      7601 days (20.81 yr)  
   first obs. used      1999-04-11  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4927  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:27:50  

Additional Information
 Jupiter MOID = 2.37435 au 
 T_jup = 3.522 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.515058608163774E-15 -3.602114420610297E-15 -9.758883132551929E-13 -5.579769511091383E-15 -2.070467735053077E-13 1.762520942386889E-15
q -3.602114420610297E-15 8.634321001925174E-15 2.441030021630242E-12 1.322586424962077E-14 5.340454201800247E-13 -3.929874296886936E-15
tp -9.758883132551929E-13 2.441030021630242E-12 6.726246441092502E-9 -1.710121685872554E-11 1.820582969228152E-9 2.728542002747137E-12
node -5.579769511091383E-15 1.322586424962077E-14 -1.710121685872554E-11 8.314243061303741E-10 -8.294280598171607E-10 -2.269839985448668E-11
peri -2.070467735053077E-13 5.340454201800247E-13 1.820582969228152E-9 -8.294280598171607E-10 1.321128539603874E-9 2.337289851027716E-11
i 1.762520942386889E-15 -3.929874296886936E-15 2.728542002747137E-12 -2.269839985448668E-11 2.337289851027716E-11 1.637612954982255E-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 14.9   n/a MPO449561  
diameter diameter 3.265 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.218   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91327 (1999 GK53)          Discovered 1999-Apr-11 by LONEOS at Anderson Mesa
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 GK53 = 1999 JS136 = 2000 QE3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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