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C/2021 C6 (Lemmon)
Classification: Hyperbolic Comet          SPK-ID: 1003770
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459277.5 (2021-Mar-04.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001882719445651 0.00061115  
a -1737.410835731362 563.76 au
q 3.271057165516178 0.00042908 au
i 164.6254389722932 0.0013497 deg
node 332.1558340018378 0.0029207 deg
peri 203.5780988011474 0.020475 deg
M -.003462174772901553 0.0016839 deg
tp 2459531.889219182965
(2021-Nov-13.38921918)
0.088873 TDB
period n/a
n/a
n/a
n/a
d
yr
n 1.360975431278573E-5 6.6242e-06 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      86 days  
   first obs. used      2021-01-23  
   last obs. used      2021-04-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .47962  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-02 23:42:54  

Additional Information
 Earth MOID = 2.29371 au 
 Jupiter MOID = 1.02449 au 
[ 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 15.4   0.5 3 2 parameter fit from 109 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 3 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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