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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 2458859.5 (2020-Jan-11.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001052434305973 5.3773e-06  
a -4748.211846174727 24.256 au
q 4.99718103894175 6.8348e-06 au
i 155.7224453123238 3.2719e-05 deg
node 42.33972241650942 5.1543e-05 deg
peri 55.91195485889569 0.00026086 deg
M -.0005741267323287361 4.3974e-06 deg
tp 2459050.089436375008
(2020-Jul-19.58943638)
0.0019853 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.01237436475268E-6 2.3082e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      482 days (1.32 yr)  
   first obs. used      2019-08-28  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .53516  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-02 23:42:43  

Additional Information
 Earth MOID = 4.06474 au 
 Jupiter MOID = .997076 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   0.7 9 2 parameter fit from 178 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 9 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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