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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001050953595301 5.3976e-06  
a -4754.900805890102 24.416 au
q 4.997180097249544 6.8458e-06 au
i 155.7224338186714 3.2845e-05 deg
node 42.33970398524402 5.2035e-05 deg
peri 55.9120400674155 0.00026189 deg
M -.000569912324785361 4.3878e-06 deg
tp 2459050.090323302305
(2020-Jul-19.59032330)
0.001994 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.006020111462261E-6 2.3153e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      482 days (1.32 yr)  
   first obs. used      2019-08-28  
   last obs. used      2020-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .55095  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-14 17:13:02  

Additional Information
 Earth MOID = 4.06477 au 
 Jupiter MOID = .99708 au 
 T_jup = -2.526 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 2.913415956268205E-11 2.789665368897037E-11 -3.280054081311189E-9 -5.247076913000071E-11 -4.331163361554169E-10 -2.998614152569512E-11
q 2.789665368897037E-11 4.686510788788321E-11 -9.997845739588707E-9 -8.398550101817146E-11 -1.349369293015883E-9 -5.387303972904935E-11
tp -3.280054081311189E-9 -9.997845739588707E-9 3.975988610218453E-6 1.610599230492759E-8 5.122803260421861E-7 1.236163173216227E-8
node -5.247076913000071E-11 -8.398550101817146E-11 1.610599230492759E-8 2.707605759895821E-9 4.526369384673493E-9 1.559069949646792E-9
peri -4.331163361554169E-10 -1.349369293015883E-9 5.122803260421861E-7 4.526369384673493E-9 6.858427424189682E-8 2.994984147856813E-9
i -2.998614152569512E-11 -5.387303972904935E-11 1.236163173216227E-8 1.559069949646792E-9 2.994984147856813E-9 1.078807117760649E-9

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 6 2 parameter fit from 161 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 6 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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