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157P/Tritton
Classification: Jupiter-family Comet          SPK-ID: 1000096
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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:
Orbital Elements at Epoch 2455008.5 (2009-Jun-26.0) TDB
Reference: JPL K163/1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6012074064871192 2.2655e-07  
a 3.411752218744261 1.0175e-07 au
q 1.360581515736349 7.7905e-07 au
i 7.278250043167591 5.4805e-06 deg
node 300.1169628656333 8.1749e-05 deg
peri 148.6980798555847 9.6274e-05 deg
M 322.5444155189025 7.4149e-06 deg
tp 2455247.985227040989
(2010-Feb-20.48522704)
5.5576e-05 TDB
period 2301.784444940793
6.30
0.00010297
2.819e-07
d
yr
n .1564003965667863 6.9968e-09 deg/d
Q 5.462922921752172 1.6293e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.221111908612328E-9 2.151E-10
A2 [EST] 2.723021157215875E-10 7.731E-12
  Orbit Determination Parameters
   # obs. used (total)      1222  
   data-arc span      5034 days (13.78 yr)  
   first obs. used      2003-10-06  
   last obs. used      2017-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .7957  
   source      ORB  
   producer      Javier Roa  
   solution date      2017-Oct-04 14:57:36  

Additional Information
 Earth MOID = .38269 au 
 Jupiter MOID = .161499 au 
 T_jup = 2.809 
[ 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 12.0   2. K163/1 2 parameter fit from 254 observations, autocmod 2.6i
comet total magnitude slope K1 19.   n/a K163/1 autocmod 2.6i
comet nuclear magnitude M2 16.8   0.9 K163/1 from 823 observations, autocmod 2.6i
comet nuclear magnitude slope K2 5.   n/a K163/1 autocmod 2.6i
comet nuclear phase coefficient PC 0.03   n/a K163/1 autocmod 2.6i

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2003.8   157P/2003 T1       
 1978.6   157P/1978 C2   1977 XIII   1978d 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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