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19P/Borrelly
Classification: Jupiter-family Comet          SPK-ID: 1000005
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


:
Orbital Elements at Epoch 2455628.5 (2011-Mar-08.0) TDB
Reference: JPL K223/2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6250848905251777 1.429e-07  
a 3.605709020423714 1.8023e-07 au
q 1.351834792126511 5.5439e-07 au
i 30.35046976931822 8.5372e-06 deg
node 75.39887860965189 5.0597e-05 deg
peri 353.3590234674848 5.4319e-05 deg
M 137.9447748228253 1.4034e-05 deg
tp 2454670.231537717643
(2008-Jul-22.73153772)
0.00010422 TDB
period 2500.831560055337
6.85
0.00018751
5.134e-07
d
yr
n .1439521180674936 1.0793e-08 deg/d
Q 5.859583248720917 2.929e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.6347750441483E-9 8.47E-11
A2 [EST] -3.801935646518123E-10 2.675E-12
  Orbit Determination Parameters
   # obs. used (total)      1106  
   data-arc span      5059 days (13.85 yr)  
   first obs. used      2007-08-19  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .73992  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2021-Jul-06 15:02:48  

Additional Information
 Earth MOID = .367658 au 
 Jupiter MOID = .454147 au 
 T_jup = 2.565 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 8.3   2. K223/2 2 parameter fit from 157 observations, autocmod 2.9c
comet total magnitude slope K1 17.75   n/a K223/2 autocmod 2.9c
comet nuclear magnitude M2 13.9   01. K223/2 from 867 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a K223/2 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a K223/2 autocmod 2.9c
diameter diameter 4.8 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (to be published)  
geometric albedo albedo 0.022   0.003 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  

19P/Borrelly          Discovered 1904-Dec-28 by Borrelly at Marseilles, France
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1994.9       1994 XXX   1994l 
 1988.0       1987 XXXIII   1987p 
 1981.2       1981 IV   1980i 
 1974.3       1974 VII   1973m 
 1967.5       1967 VIII   1967m 
 1960.6       1960 V   1960k 
 1953.8       1953 IV   1954b 
 1933.2       1932 IV   1932i 
 1926.4       1925 VIII   1925f 
 1919.5       1918 IV   1918c 
 1912.7   19P/1911 S1   1911 VIII   1911e 
 1905.9   19P/1904 Y2   1905 II   1904e 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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