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P/2021 C2 (PANSTARRS)
Classification: Jupiter-family Comet          SPK-ID: 1003765
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459290.5 (2021-Mar-17.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4874368935981399 4.8207e-05  
a 9.540849779085564 0.0011171 au
q 4.890287600481598 0.00012762 au
i 21.92691253476368 8.5218e-05 deg
node 66.49834986388771 0.0023245 deg
peri 78.82421360168399 0.039856 deg
M .6806917791373598 0.011643 deg
tp 2459270.147066268231
(2021-Feb-24.64706627)
0.34555 TDB
period 10764.13197280333
29.47
1.8905
0.005176
d
yr
n .03344440600594422 5.874e-06 deg/d
Q 14.19141195768953 0.0016617 au
  Orbit Determination Parameters
   # obs. used (total)      53  
   data-arc span      142 days  
   first obs. used      2021-01-17  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .44244  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-01 22:13:00  

Additional Information
 Earth MOID = 3.98756 au 
 Jupiter MOID = .999781 au 
 T_jup = 2.739 
[ show covariance matrix ]

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 11.4   0.9 6 from 41 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 10.   n/a 6 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2021.1   P/2021 C2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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