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70449 Gruebel (1999 TK17)
Classification: Main-belt Asteroid          SPK-ID: 2070449
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1470778990644748 3.7102e-08  
a 2.361060196491195 8.9013e-09 au
q 2.013800423226514 8.7035e-08 au
i 1.63077831698943 4.7533e-06 deg
node 323.3035609547871 0.00013701 deg
peri 156.9132825398704 0.00013802 deg
M 206.6682887464976 1.5927e-05 deg
tp 2459764.901940711588
(2022-Jul-04.40194071)
5.9312e-05 TDB
period 1325.131618209411
3.63
7.4937e-06
2.052e-08
d
yr
n .2716711268926262 1.5363e-09 deg/d
Q 2.708319969755876 1.0211e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      7591 days (20.78 yr)  
   first obs. used      1999-09-29  
   last obs. used      2020-07-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49884  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:49:46  

Additional Information
 Earth MOID = 1.02978 au 
 Jupiter MOID = 2.36277 au 
 T_jup = 3.536 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456513.5 (2013-Aug-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1473704427519618 3.6974e-08  
q 2.012261350501955 8.671e-08 au
tp 2457114.324958462116
(2015-Apr-01.82495846)
5.6879e-05 TDB
node 323.3832008580417 0.00013716 deg
peri 156.463228687049 0.00013817 deg
i 1.630738800260011 4.7481e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      7591 days (20.78 yr)  
   first obs. used      1999-09-29  
   last obs. used      2020-07-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49884  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:49:46  

Additional Information
 Jupiter MOID = 2.36277 au 
 T_jup = 3.536 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.367074481027303E-15 -3.194566618557993E-15 6.564725057474881E-13 -1.04240633545037E-14 2.03350720084038E-13 -2.974385997722172E-16
q -3.194566618557993E-15 7.518580592718679E-15 -1.53881464767943E-12 2.310597644205536E-14 -4.829403051053907E-13 7.400312804986313E-16
tp 6.564725057474881E-13 -1.53881464767943E-12 3.235268124187101E-9 -6.001973574042529E-12 9.560973754716944E-10 -6.672298394777354E-14
node -1.04240633545037E-14 2.310597644205536E-14 -6.001973574042529E-12 1.881409783124584E-8 -1.880758215474946E-8 1.368145945055761E-10
peri 2.03350720084038E-13 -4.829403051053907E-13 9.560973754716944E-10 -1.880758215474946E-8 1.90903546142105E-8 -1.367811330962159E-10
i -2.974385997722172E-16 7.400312804986313E-16 -6.672298394777354E-14 1.368145945055761E-10 -1.367811330962159E-10 2.254434014509958E-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 15.31   n/a E2021B10  

70449 Gruebel           Discovered 1999 Oct. 15 by W. D. Bruton and M. L. Johnson at Nacogdoches.
Robert W. Gruebel (1924-2016) was a Professor of Physics at Stephen F. Austin State University, and a mentor, colleague and friend of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

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