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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 ]

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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 
[ 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 14.9   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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