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27224 (1999 GC9)
Classification: Main-belt Asteroid          SPK-ID: 2027224
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08718427359150183 3.8946e-08  
a 2.335241132087025 9.9745e-09 au
q 2.131644830325021 8.9471e-08 au
i 6.075559467374098 5.7454e-06 deg
node 188.3214482127642 3.7184e-05 deg
peri 75.87824205990647 5.0489e-05 deg
M 286.2469942065888 3.2238e-05 deg
tp 2459267.538111529267
(2021-Feb-22.03811153)
0.00011658 TDB
period 1303.454945549139
3.57
8.3511e-06
2.286e-08
d
yr
n .2761890629432794 1.7695e-09 deg/d
Q 2.538837433849028 1.0844e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      15792 days (43.24 yr)  
   first obs. used      1975-10-15  
   last obs. used      2019-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55487  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:02:21  

Additional Information
 Earth MOID = 1.12614 au 
 Jupiter MOID = 2.50794 au 
 T_jup = 3.555 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456548.5 (2013-Sep-13.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08773922236826281 3.8807e-08  
q 2.130501595767477 8.9229e-08 au
tp 2456660.428305706240
(2014-Jan-02.92830571)
0.00011829 TDB
node 188.3546885841605 3.7198e-05 deg
peri 75.94645787192655 5.0378e-05 deg
i 6.073628361235524 5.7446e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      15792 days (43.24 yr)  
   first obs. used      1975-10-15  
   last obs. used      2019-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55487  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:02:21  

Additional Information
 Jupiter MOID = 2.50794 au 
 T_jup = 3.555 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.50599458992627E-15 -3.445574708673451E-15 -1.638856342106559E-12 6.431468096036417E-15 -4.772862745368221E-13 -2.990201540779679E-15
q -3.445574708673451E-15 7.961844444880027E-15 3.593046557500044E-12 -1.45166533560198E-14 1.044363300801687E-12 7.15353165496231E-15
tp -1.638856342106559E-12 3.593046557500044E-12 1.399299230056437E-8 -1.36001425175924E-11 4.028732392934419E-9 6.978088566919277E-12
node 6.431468096036417E-15 -1.45166533560198E-14 -1.36001425175924E-11 1.383720903466358E-9 -1.379348741821976E-9 3.788249785194364E-11
peri -4.772862745368221E-13 1.044363300801687E-12 4.028732392934419E-9 -1.379348741821976E-9 2.537978143014196E-9 -3.565533342102113E-11
i -2.990201540779679E-15 7.15353165496231E-15 6.978088566919277E-12 3.788249785194364E-11 -3.565533342102113E-11 3.30006733056398E-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 15.2   n/a MPO468048  

27224 (1999 GC9)          Discovered 1999-Apr-10 by LONEOS at Anderson Mesa
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 GC9 = 1975 TD7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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