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P/2007 T2 (Kowalski)
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1002480
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 2454411.5 (2007-Nov-07.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .775006849149429 8.7851e-05  
a 3.092617088390089 0.0011149 au
q .695817663091205 2.6047e-05 au
i 9.896408617897622 0.00064772 deg
node 3.997604770814243 0.0016087 deg
peri 358.5536404047752 0.0018362 deg
M 8.875868120543458 0.0048078 deg
tp 2454362.522569865653
(2007-Sep-19.02256987)
0.0010029 TDB
period 1986.495811891958
5.44
1.0742
0.002941
d
yr
n .1812236390557162 9.7996e-05 deg/d
Q 5.489416513688973 0.0019789 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.31903872624718E-8 4.691E-9
A2 [EST] 2.31175474865697E-9 3.1E-9
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      160 days  
   first obs. used      2007-08-11  
   last obs. used      2008-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .27893  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jun-13 00:19:00  

Additional Information
 Earth MOID = .156333 au 
 Jupiter MOID = .030466 au 
 T_jup = 2.642 
[ hide covariance matrix ]
Orbit Covariance (8×8)
  e q tp node peri i A1 A2
e 7.717852639524004E-9 -1.871199128939628E-9 -2.814674289731674E-9 9.656377788831851E-8 1.378127328366987E-8 5.454300958529897E-8 -2.185528460282239E-13 1.118526702695012E-13
q -1.871199128939628E-9 6.784559899607779E-10 1.538212234455117E-8 -2.183125415161866E-8 1.768575574886699E-8 -1.534254444472766E-8 1.736888920240079E-14 9.568810212342759E-15
tp -2.814674289731674E-9 1.538212234455117E-8 1.00587516263213E-6 3.152482363930963E-8 1.4081995253698E-6 -1.694632347942197E-7 -1.801518072112651E-12 2.577669313755842E-12
node 9.656377788831851E-8 -2.183125415161866E-8 3.152482363930963E-8 2.587754922143641E-6 -1.04026233433739E-6 7.388729773472575E-7 -4.7387649201119E-12 9.760547318610744E-13
peri 1.378127328366987E-8 1.768575574886699E-8 1.4081995253698E-6 -1.04026233433739E-6 3.371538634735804E-6 -1.692636586728802E-7 -2.067460389568411E-12 4.287091000139626E-12
i 5.454300958529897E-8 -1.534254444472766E-8 -1.694632347942197E-7 7.388729773472575E-7 -1.692636586728802E-7 4.195451405589596E-7 -1.474303289603854E-12 3.355653380338934E-13
A1 -2.185528460282239E-13 1.736888920240079E-14 -1.801518072112651E-12 -4.7387649201119E-12 -2.067460389568411E-12 -1.474303289603854E-12 2.200882098333448E-17 -4.687666251956907E-18
A2 1.118526702695012E-13 9.568810212342759E-15 2.577669313755842E-12 9.760547318610744E-13 4.287091000139626E-12 3.355653380338934E-13 -4.687666251956907E-18 9.607314947923787E-18

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 18.6   1. 20 from 68 observations, assumed slope, autocmod 2.6n
comet total magnitude slope K1 15.   n/a 20 autocmod 2.6n

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2007.7   P/2007 T2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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