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JPL Small-Body Database Browser
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442378 (2011 TK17)
Classification: Main-belt Asteroid          SPK-ID: 2442378
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1287468011777388 6.8933e-08  
a 2.778997687347483 5.7882e-08 au
q 2.421210624621161 1.9877e-07 au
i 6.053270149103255 9.6721e-06 deg
node 76.35148112232321 5.8875e-05 deg
peri 313.4867031079561 6.9821e-05 deg
M 218.6467593971503 3.8453e-05 deg
tp 2459264.906654447959
(2021-Feb-19.40665445)
0.00018991 TDB
period 1692.118232176158
4.63
5.2866e-05
1.447e-07
d
yr
n .2127510910020868 6.6468e-09 deg/d
Q 3.136784750073806 6.5334e-08 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      4221 days (11.56 yr)  
   first obs. used      2007-12-04  
   last obs. used      2019-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5254  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:05  

Additional Information
 Earth MOID = 1.4311 au 
 Jupiter MOID = 2.29538 au 
 T_jup = 3.314 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457467.5 (2016-Mar-20.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1306384386684069 6.9429e-08  
q 2.413553111328712 2.0102e-07 au
tp 2457574.421872906337
(2016-Jul-04.92187291)
0.00016764 TDB
node 76.36305382235439 5.8952e-05 deg
peri 313.4937554439468 6.9521e-05 deg
i 6.052387931989357 9.6669e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      4221 days (11.56 yr)  
   first obs. used      2007-12-04  
   last obs. used      2019-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5254  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:05  

Additional Information
 Jupiter MOID = 2.29538 au 
 T_jup = 3.314 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.820426837056483E-15 -1.351042789753616E-14 3.741868776471335E-12 1.538713383130161E-15 1.041330674919574E-12 4.474009726706429E-15
q -1.351042789753616E-14 4.04083443355684E-14 -8.593202048326558E-12 -1.327623529233319E-14 -2.557901333106188E-12 -8.44924713799442E-15
tp 3.741868776471335E-12 -8.593202048326558E-12 2.810164628737188E-8 -8.381414370251145E-11 6.183171414791678E-9 2.871605346756444E-11
node 1.538713383130161E-15 -1.327623529233319E-14 -8.381414370251145E-11 3.475285501761271E-9 -3.472811591733864E-9 1.626116802946431E-10
peri 1.041330674919574E-12 -2.557901333106188E-12 6.183171414791678E-9 -3.472811591733864E-9 4.833155242725624E-9 -1.554997644806002E-10
i 4.474009726706429E-15 -8.44924713799442E-15 2.871605346756444E-11 1.626116802946431E-10 -1.554997644806002E-10 9.344828703246841E-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 17.1   n/a MPO397580  

442378 (2011 TK17)          Discovered 2007-Dec-04 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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