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274P/Tombaugh-Tenagra
Classification: Jupiter-family Comet          SPK-ID: 1001015
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456257.5 (2012-Nov-26.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4404609056444271 5.0811e-07  
a 4.364004934248775 2.276e-07 au
q 2.441831368672811 2.1517e-06 au
i 15.83786540766405 3.5331e-05 deg
node 81.36248347718983 6.9282e-05 deg
peri 38.45590977651718 0.00015071 deg
M 350.3420382315152 5.3876e-05 deg
tp 2456346.832452566381
(2013-Feb-23.33245257)
0.00049391 TDB
period 3329.862314100101
9.12
0.0002605
7.132e-07
d
yr
n .1081125782515396 8.4579e-09 deg/d
Q 6.286178499824739 3.2785e-07 au
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      30426 days (83.30 yr)  
   first obs. used      1931-01-12  
   last obs. used      2014-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63847  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Jul-06 12:14:33  

Additional Information
 Earth MOID = 1.48001 au 
 Jupiter MOID = .00302864 au 
 T_jup = 2.774 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 11.1   0.6 26 2 parameter fit from 222 observations, autocmod 2.6i
comet total magnitude slope K1 14.   n/a 26 autocmod 2.6i
comet nuclear magnitude M2 14.8   0.5 26 from 365 observations, autocmod 2.6i
comet nuclear magnitude slope K2 5.   n/a 26 autocmod 2.6i
comet nuclear phase coefficient PC 0.03   n/a 26 autocmod 2.6i

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2013.1   274P/2012 WX32       
 2004.0   274P/2003 WZ141       
 1931.1   274P/1931 AN       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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