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305534 (2008 GW27)
Classification: Main-belt Asteroid          SPK-ID: 2305534
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1690065821359909 7.4831e-08  
a 3.141483304395537 3.4468e-08 au
q 2.610551948282369 2.3929e-07 au
i 1.734141348977353 7.3539e-06 deg
node 60.67235683158415 0.0002554 deg
peri 15.85007493161123 0.00025713 deg
M 156.22650806602 2.5415e-05 deg
tp 2458117.922633844076
(2017-Dec-30.42263384)
0.00014085 TDB
period 2033.764024744529
5.57
3.3472e-05
9.164e-08
d
yr
n .1770116865181649 2.9133e-09 deg/d
Q 3.672414660508706 4.0294e-08 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      6744 days (18.46 yr)  
   first obs. used      2000-10-23  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63068  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:55:45  

Additional Information
 Earth MOID = 1.6259 au 
 Jupiter MOID = 1.59584 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457117.5 (2015-Apr-05.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .170535045245561 7.4637e-08  
q 2.605299682366137 2.3881e-07 au
tp 2458118.841232570423
(2017-Dec-31.34123257)
0.00013946 TDB
node 60.68084573375511 0.00025532 deg
peri 16.0486770145492 0.00025702 deg
i 1.734751373136477 7.3562e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      6744 days (18.46 yr)  
   first obs. used      2000-10-23  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63068  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:55:45  

Additional Information
 Jupiter MOID = 1.59584 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.570744515838941E-15 -1.769381479857675E-14 -3.5976443719795E-12 7.339117217718348E-14 -1.016663138169242E-12 1.726293865267974E-16
q -1.769381479857675E-14 5.703214342772877E-14 1.177024273628189E-11 -2.38301890530353E-13 3.208525336912255E-12 -2.710035137707494E-16
tp -3.5976443719795E-12 1.177024273628189E-11 1.945027823494995E-8 -8.398034091852854E-11 4.141199016161799E-9 -3.448555958415038E-12
node 7.339117217718348E-14 -2.38301890530353E-13 -8.398034091852854E-11 6.51881768622155E-8 -6.51771699675466E-8 -1.87755251525959E-10
peri -1.016663138169242E-12 3.208525336912255E-12 4.141199016161799E-9 -6.51771699675466E-8 6.60597800196762E-8 1.869311986155902E-10
i 1.726293865267974E-16 -2.710035137707494E-16 -3.448555958415038E-12 -1.87755251525959E-10 1.869311986155902E-10 5.411312176596781E-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 16.2   n/a MPO471208  

305534 (2008 GW27)          Discovered 2008-Apr-03 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 GW27 = 2002 CK200 = 2007 AC13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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