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JPL Small-Body Database Browser
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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08718424425651931 3.4017e-08  
a 2.335241130008018 8.8978e-09 au
q 2.131644896931529 7.9945e-08 au
i 6.075558250099426 5.1298e-06 deg
node 188.3213988702873 3.48e-05 deg
peri 75.87831144383362 4.6016e-05 deg
M 286.2469807828313 2.9746e-05 deg
tp 2459267.538159776170
(2021-Feb-22.03815978)
0.00010786 TDB
period 1303.45494380849
3.57
7.4497e-06
2.04e-08
d
yr
n .2761890633121056 1.5785e-09 deg/d
Q 2.538837363084508 9.6736e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      16182 days (44.30 yr)  
   first obs. used      1975-10-15  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54448  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:59:38  

Additional Information
 Earth MOID = 1.12614 au 
 Jupiter MOID = 2.50794 au 
 T_jup = 3.555 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456878.5 (2014-Aug-09.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08781788356669898 3.3938e-08  
q 2.130429996443445 7.9839e-08 au
tp 2456660.145679510513
(2014-Jan-02.64567951)
0.00010647 TDB
node 188.3456962940095 3.4813e-05 deg
peri 75.86076604745081 4.5904e-05 deg
i 6.073659516268099 5.1294e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      16182 days (44.30 yr)  
   first obs. used      1975-10-15  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54448  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:59:38  

Additional Information
 Jupiter MOID = 2.50794 au 
 T_jup = 3.555 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.151814281066163E-15 -2.695643068641377E-15 -6.757772144516054E-13 6.064126542433994E-15 -1.822407485215071E-13 -2.189828863009399E-15
q -2.695643068641377E-15 6.374242581217175E-15 1.555538396176767E-12 -1.460171703768624E-14 4.208152483793427E-13 5.317325350865846E-15
tp -6.757772144516054E-13 1.555538396176767E-12 1.133616408223648E-8 8.136603255032401E-12 3.194742722002955E-9 8.893913776001566E-12
node 6.064126542433994E-15 -1.460171703768624E-14 8.136603255032401E-12 1.211971155011767E-9 -1.202229949845658E-9 4.275805448914143E-12
peri -1.822407485215071E-13 4.208152483793427E-13 3.194742722002955E-9 -1.202229949845658E-9 2.107142867863792E-9 -1.710966783104895E-12
i -2.189828863009399E-15 5.317325350865846E-15 8.893913776001566E-12 4.275805448914143E-12 -1.710966783104895E-12 2.631061604230667E-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

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