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C/2017 T1 (Heinze)
Classification: Hyperbolic Comet          SPK-ID: 1003538
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458101.5 (2017-Dec-14.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000345786802034 8.2969e-06  
a -1679.227553118097 40.282 au
q .5806547254801013 3.2406e-06 au
i 96.83375647604693 0.00019288 deg
node 102.3159450857234 2.2449e-05 deg
peri 96.91627909591816 0.00050198 deg
M -.0009984433940463837 3.5924e-05 deg
tp 2458171.208173180186
(2018-Feb-21.70817318)
0.00020965 TDB
period n/a
n/a
n/a
n/a
d
yr
n 1.432318978530029E-5 5.1539e-07 deg/d
Q n/a n/a au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 4.684788318732516E-8 1.315E-9
A2 [EST] -1.614069446285346E-8 1.294E-9
  Orbit Determination Parameters
   # obs. used (total)      1005  
   data-arc span      262 days  
   first obs. used      2017-09-28  
   last obs. used      2018-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .64919  
   source      ORB  
   producer      Javier Roa  
   solution date      2019-May-15 15:10:09  

Additional Information
 Earth MOID = .0140842 au 
 Jupiter MOID = 3.03183 au 
[ hide covariance matrix ]
Orbit Covariance (8×8)
  e q tp node peri i A1 A2
e 6.883785422881534E-11 2.641138227060992E-11 -1.734532652497285E-9 1.825517868297941E-10 -4.144636907984605E-9 1.579978676893165E-9 5.78724517278556E-15 -1.016404799270229E-14
q 2.641138227060992E-11 1.05013640778189E-11 -6.589813814725307E-10 7.00692361288595E-11 -1.619727590170708E-9 6.118561007605185E-10 1.795647802049599E-15 -3.785434211578047E-15
tp -1.734532652497285E-9 -6.589813814725307E-10 4.395329821940935E-8 -4.581134671085929E-9 1.039955071748828E-7 -3.961612049046014E-8 -1.612499018675222E-13 2.613465509930268E-13
node 1.825517868297941E-10 7.00692361288595E-11 -4.581134671085929E-9 5.039404009341105E-10 -1.098080093963986E-8 4.244406108827724E-9 1.428923744221921E-14 -2.653211588696748E-14
peri -4.144636907984605E-9 -1.619727590170708E-9 1.039955071748828E-7 -1.098080093963986E-8 2.519859470116575E-7 -9.550610587120623E-8 -3.185603737654724E-13 6.044896058704595E-13
i 1.579978676893165E-9 6.118561007605185E-10 -3.961612049046014E-8 4.244406108827724E-9 -9.550610587120623E-8 3.720380524982852E-8 1.207383297254493E-13 -2.290614785323114E-13
A1 5.78724517278556E-15 1.795647802049599E-15 -1.612499018675222E-13 1.428923744221921E-14 -3.185603737654724E-13 1.207383297254493E-13 1.728791803765746E-18 -1.286865538983162E-18
A2 -1.016404799270229E-14 -3.785434211578047E-15 2.613465509930268E-13 -2.653211588696748E-14 6.044896058704595E-13 -2.290614785323114E-13 -1.286865538983162E-18 1.674387955332562E-18

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 11.9   1. 11 from 274 observations, assumed slope, autocmod 2.6q
comet total magnitude slope K1 14.   n/a 11 autocmod 2.6q
comet nuclear magnitude M2 17.0   1. 11 from 619 observations, autocmod 2.6q
comet nuclear magnitude slope K2 5.   n/a 11 autocmod 2.6q
comet nuclear phase coefficient PC 0.03   n/a 11 autocmod 2.6q

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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