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C/2019 Q1 (Lemmon)
Classification: Hyperbolic Comet          SPK-ID: 1003717
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458860.5 (2020-Jan-12.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001051447104546 5.4155e-06  
a -4752.670968901821 24.474 au
q 4.997182129111491 7.0366e-06 au
i 155.7224314393708 3.3179e-05 deg
node 42.33970059641295 5.2448e-05 deg
peri 55.91196023322918 0.00026973 deg
M -.0005703116934358178 4.4033e-06 deg
tp 2459050.089737631225
(2020-Jul-19.58973763)
0.0020476 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.008135886263755E-6 2.3235e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      423 days (1.16 yr)  
   first obs. used      2019-08-28  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .54991  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-30 21:14:49  

Additional Information
 Earth MOID = 4.06478 au 
 Jupiter MOID = .99708 au 
 T_jup = -2.526 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.001   .70576 16 autocmod 2.8
comet total magnitude M1 13.8   0.8 5 2 parameter fit from 159 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 5 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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