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C/2020 S3 (Erasmus)
Classification: Comet          SPK-ID: 1003724
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459156.5 (2020-Nov-03.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9978970152888097 1.7349e-06  
a 189.501028714173 0.15606 au
q .3985177661407404 7.6684e-07 au
i 19.86115931935844 3.0187e-05 deg
node 222.9990427340645 0.00014981 deg
peri 349.880336400709 0.00014717 deg
M 359.9850119345666 1.8522e-05 deg
tp 2459196.169695269841
(2020-Dec-12.66969527)
3.093e-05 TDB
period 952830.7946461181
2608.71
1177
3.222
d
yr
n .000377821541896853 4.6671e-07 deg/d
Q 378.6035396622052 0.31179 au
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      250 days  
   first obs. used      2020-09-17  
   last obs. used      2021-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .5648  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-31 22:42:55  

Additional Information
 Earth MOID = .315108 au 
 Jupiter MOID = .583666 au 
 T_jup = 0.763 
[ 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 13.1   1. 12 2 parameter fit from 372 observations, autocmod 2.9c
comet total magnitude slope K1 10.   n/a 12 autocmod 2.9c
comet nuclear magnitude M2 14.8   0.1 12 from 6 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 12 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 12 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.9   C/2020 S3       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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