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295251 (2008 GQ40)
Classification: Main-belt Asteroid          SPK-ID: 2295251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05886889955880165 6.7967e-08  
a 2.744376682130003 2.9819e-08 au
q 2.582818246878174 1.8926e-07 au
i 6.618909790122663 6.6316e-06 deg
node 158.7544463721748 6.9588e-05 deg
peri 211.1299361038109 9.4365e-05 deg
M 356.1010867381089 6.2805e-05 deg
tp 2458618.484777973983
(2019-May-14.98477797)
0.00028963 TDB
period 1660.596077865444
4.55
2.7064e-05
7.41e-08
d
yr
n .2167896243996611 3.5332e-09 deg/d
Q 2.905935117381831 3.1574e-08 au
  Orbit Determination Parameters
   # obs. used (total)      127  
   data-arc span      8411 days (23.03 yr)  
   first obs. used      1996-10-15  
   last obs. used      2019-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62077  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 06:59:36  

Additional Information
 Earth MOID = 1.58256 au 
 Jupiter MOID = 2.37697 au 
 T_jup = 3.336 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457336.5 (2015-Nov-10.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05905157038097417 6.7109e-08  
q 2.582090691950954 1.8619e-07 au
tp 2456945.935131349691
(2014-Oct-15.43513135)
0.00029887 TDB
node 158.8170989720476 6.9456e-05 deg
peri 208.6900525813221 9.4554e-05 deg
i 6.624016768760196 6.6377e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      127  
   data-arc span      8411 days (23.03 yr)  
   first obs. used      1996-10-15  
   last obs. used      2019-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62077  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 06:59:36  

Additional Information
 Jupiter MOID = 2.37697 au 
 T_jup = 3.336 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.503658687514047E-15 -1.235440050505119E-14 5.999200291536972E-12 -1.137995929914473E-14 1.351828844642054E-12 2.012251123530991E-16
q -1.235440050505119E-14 3.46682800422812E-14 -1.911104942141168E-11 2.810753060499785E-14 -4.245784037377215E-12 -4.225582810927488E-16
tp 5.999200291536972E-12 -1.911104942141168E-11 8.932308115527092E-8 1.576728864515644E-10 1.926296434437977E-8 5.108572494129282E-12
node -1.137995929914473E-14 2.810753060499785E-14 1.576728864515644E-10 4.824125884233256E-9 -4.757253102809045E-9 1.158718652624929E-10
peri 1.351828844642054E-12 -4.245784037377215E-12 1.926296434437977E-8 -4.757253102809045E-9 8.94044403396237E-9 -1.139124081864771E-10
i 2.012251123530991E-16 -4.225582810927488E-16 5.108572494129282E-12 1.158718652624929E-10 -1.139124081864771E-10 4.405958986854859E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO455182  

295251 (2008 GQ40)          Discovered 2008-Apr-04 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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