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308282 (2005 GM209)
Classification: Main-belt Asteroid          SPK-ID: 2308282
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1542462195621349 6.9185e-08  
a 2.574247942606555 2.6831e-08 au
q 2.17717992924389 1.7305e-07 au
i 15.80262587344938 7.8021e-06 deg
node 68.59043973685588 2.1154e-05 deg
peri 174.1745396180075 3.1515e-05 deg
M 206.0797557452836 3.0075e-05 deg
tp 2459645.511163824722
(2022-Mar-07.01116382)
0.00013192 TDB
period 1508.599600404966
4.13
2.3586e-05
6.457e-08
d
yr
n .2386319073022174 3.7309e-09 deg/d
Q 2.971315955969219 3.097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      6812 days (18.65 yr)  
   first obs. used      2001-04-25  
   last obs. used      2019-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70378  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:16:35  

Additional Information
 Earth MOID = 1.16446 au 
 Jupiter MOID = 2.05665 au 
 T_jup = 3.359 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457358.5 (2015-Dec-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1547364980305797 6.9022e-08  
q 2.175167415226812 1.7265e-07 au
tp 2456630.011223161942
(2013-Dec-03.51122316)
0.00010964 TDB
node 68.60792117115537 2.1168e-05 deg
peri 174.3337210560379 3.1507e-05 deg
i 15.79955402475954 7.8005e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      6812 days (18.65 yr)  
   first obs. used      2001-04-25  
   last obs. used      2019-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70378  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:16:35  

Additional Information
 Jupiter MOID = 2.05665 au 
 T_jup = 3.359 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.764065609799264E-15 -1.18216375885393E-14 1.282047299488939E-12 1.457001544061238E-14 2.42695104390447E-13 6.714555758913789E-16
q -1.18216375885393E-14 2.980651254258119E-14 -2.559935831833512E-12 -3.508819149779079E-14 -4.310218840223822E-13 1.093580540071908E-16
tp 1.282047299488939E-12 -2.559935831833512E-12 1.202021449790105E-8 1.974486297346108E-11 2.578799206320178E-9 6.461140718441205E-13
node 1.457001544061238E-14 -3.508819149779079E-14 1.974486297346108E-11 4.481053351970033E-10 -4.265605914449343E-10 -1.309768979042957E-11
peri 2.42695104390447E-13 -4.310218840223822E-13 2.578799206320178E-9 -4.265605914449343E-10 9.926948456660136E-10 1.298559863709104E-11
i 6.714555758913789E-16 1.093580540071908E-16 6.461140718441205E-13 -1.309768979042957E-11 1.298559863709104E-11 6.084785618577867E-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 16.5   n/a MPO455271  

308282 (2005 GM209)          Discovered 2005-Apr-06 by CSS at Catalina
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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