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JPL Small-Body Database Browser
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363P/Lemmon (2017 W1)
Classification: Jupiter-family Comet          SPK-ID: 1003169
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456838.5 (2014-Jun-30.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5576536808982621 3.501e-07  
a 3.404914744609994 3.2016e-07 au
q 1.506151504133465 1.328e-06 au
i 3.97332511081194 2.338e-05 deg
node 169.9482827930966 0.00028371 deg
peri 315.2169759658266 0.00032884 deg
M 146.5083253958247 5.326e-05 deg
tp 2455904.562973447145
(2011-Dec-09.06297345)
0.00029682 TDB
period 2294.868422327961
6.28
0.00032368
8.862e-07
d
yr
n .1568717389186125 2.2126e-08 deg/d
Q 5.303677985086522 4.987e-07 au
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      2384 days (6.53 yr)  
   first obs. used      2011-11-03  
   last obs. used      2018-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .70411  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-15 08:31:18  

Additional Information
 Earth MOID = .523385 au 
 Jupiter MOID = .239042 au 
 T_jup = 2.868 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 18.0   01. 15 2 parameter fit from 72 observations, autocmod 2.6q
comet total magnitude slope K1 9.   n/a 15 autocmod 2.6q
comet nuclear magnitude M2 19.7   0.5 15 from 19 observations, autocmod 2.6q
comet nuclear magnitude slope K2 5.   n/a 15 autocmod 2.6q
comet nuclear phase coefficient PC 0.03   n/a 15 autocmod 2.6q

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2018.2   363P/2017 W1       
 2011.9   363P/2011 VJ5       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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