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JPL Small-Body Database Browser
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C/2017 U7 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003571
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458573.5 (2019-Mar-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000694971458574 1.1145e-05  
a -9234.093605974351 148.07 au
q 6.41743150195285 1.2165e-05 au
i 142.6356109865455 2.5703e-05 deg
node 276.2318206056928 4.1156e-05 deg
peri 326.0115597172288 0.00017965 deg
M -.0001822131099924858 4.3821e-06 deg
tp 2458737.546495024568
(2019-Sep-11.04649502)
0.0021303 TDB
period n/a
n/a
n/a
n/a
d
yr
n 1.110740646822093E-6 2.6716e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      1007 days (2.76 yr)  
   first obs. used      2017-08-18  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .39206  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-26 12:44:07  

Additional Information
 Earth MOID = 5.46506 au 
 Jupiter MOID = 1.63446 au 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.7736   .94769 11 autocmod 2.8
comet total magnitude M1 6.3   0.9 8 from 490 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 8.25   n/a 8 autocmod 2.8

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2020-May-18 02:02 < 00:01 Jupiter 1.65889793905141 1.65885407914236 1.65894179913614 28.1163833701597 28.0982175022647 2458987.584532903 0.821739162763441 2351.36625787646 362.853292504268 -21.8302347852602 267082.41048049 T 8 CATAB v2.0f-lin.ifort 2020-May-26 12:44:16 2020-May-26 12:44
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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