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C/2019 U6 (Lemmon)
Classification: Comet          SPK-ID: 1003663
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458966.5 (2020-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9979034687076265 7.0635e-07  
a 436.0842509026809 0.1469 au
q .9142642781287389 1.7652e-07 au
i 61.00133602200042 1.9846e-05 deg
node 235.7057593048608 2.1054e-05 deg
peri 329.6590298743008 2.0003e-05 deg
M 359.9942830857737 2.8892e-06 deg
tp 2459019.321801176053
(2020-Jun-18.82180118)
2.2653e-05 TDB
period 3326243.436688613
9106.76
1680.7
4.602
d
yr
n .0001082302022844101 5.4687e-08 deg/d
Q 871.254237527233 0.29348 au
  Orbit Determination Parameters
   # obs. used (total)      1123  
   data-arc span      753 days (2.06 yr)  
   first obs. used      2018-11-06  
   last obs. used      2020-11-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .71118  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:34:00  

Additional Information
 Earth MOID = .0284928 au 
 Jupiter MOID = 1.40983 au 
 T_jup = 0.586 
[ 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 13.264   1.1149 8 autocmod 2.8
comet total magnitude M1 13.1   0.9 28 2 parameter fit from 889 observations, autocmod 2.9c
comet total magnitude slope K1 7.75   n/a 28 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.5   C/2019 U6       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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