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P/2012 TK8 (Tenagra)
Classification: Jupiter-family Comet          SPK-ID: 1003215
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456279.5 (2012-Dec-18.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2613701706198611 3.1317e-05  
a 4.1846865890278 0.00020002 AU
q 3.090934341262959 1.6897e-05 AU
i 6.294570331078018 4.2921e-05 deg
node 289.7398606072317 0.000718 deg
peri 128.2325201255721 0.0024856 deg
M 343.4442231076484 0.0017768 deg
tp 2456423.293712652705
(2013-May-10.79371265)
0.013018 JED
period 3126.747653798621
8.56
0.22418
0.0006138
d
yr
n .1151356105001449 8.255e-06 deg/d
Q 5.278438836792641 0.0002523 AU
  Orbit Determination Parameters
   # obs. used (total)      62  
   data-arc span      543 days (1.49 yr)  
   first obs. used      2012-10-06  
   last obs. used      2014-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      4  
   fit RMS      .39059  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-18 12:01:55  

Additional Information
 Earth MOID = 2.10805 AU 
 T_jup = 2.964 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 6.9 mag 0.5 13 from 38 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 22.   n/a 13 autocmod 2.5c
comet nuclear magnitude M2 15.7 mag 0.5 13 from 12 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 13 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 13 autocmod 2.5c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2013.4   P/2012 TK8       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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