Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
C/2020 S4 (PANSTARRS)
Classification: Jupiter-family Comet          SPK-ID: 1003729
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459116.5 (2020-Sep-24.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9908502291026186 0.01643  
a 370.0876127129798 660.1 au
q 3.386216868282599 0.040798 au
i 20.56740351316734 0.0084666 deg
node 117.8268168939536 0.10781 deg
peri 21.01219436136144 0.14793 deg
M 359.8789425530553 0.32517 deg
tp 2459990.968681483113
(2023-Feb-15.46868148)
9.3707 TDB
period 2600490.372787705
7119.75
6.9574e+06
1.905e+04
d
yr
n .0001384354288587821 0.00037037 deg/d
Q 736.789008557677 1314.2 au
  Orbit Determination Parameters
   # obs. used (total)      70  
   data-arc span      23 days  
   first obs. used      2020-09-16  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .31447  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-26 08:39:53  

Additional Information
 Earth MOID = 2.41058 au 
 Jupiter MOID = 1.18699 au 
 T_jup = 2.145 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.4   0.6 4 from 63 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 10.   n/a 4 autocmod 2.8
comet nuclear magnitude M2 11.4   0.05 4 from 3 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 4 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 4 autocmod 2.8

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2023.1   C/2020 S4       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-27 07:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin