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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 2455809.5 (2011-Sep-05.0) TDB
Reference: JPL K223/6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6252926118890205 1.2964e-07  
a 3.605339337372226 1.669e-07 au
q 1.350947286360516 4.9858e-07 au
i 30.36080957172112 8.1349e-06 deg
node 75.39324587964363 4.8771e-05 deg
peri 353.3663277100644 5.3982e-05 deg
M 163.9806675880658 1.4423e-05 deg
tp 2454670.541770478947
(2008-Jul-23.04177048)
0.0001033 TDB
period 2500.446965233722
6.85
0.00017362
4.753e-07
d
yr
n .1439742594045981 9.9972e-09 deg/d
Q 5.859731388383935 2.7126e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.593370183055219E-9 7.776E-11
A2 [EST] -3.799058947110109E-10 1.978E-12
  Orbit Determination Parameters
   # obs. used (total)      1162  
   data-arc span      5138 days (14.07 yr)  
   first obs. used      2007-08-19  
   last obs. used      2021-09-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .72913  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2021-Sep-20 10:13:10  

Additional Information
 Earth MOID = .368145 au 
 Jupiter MOID = .453199 au 
 T_jup = 2.564 
[ hide covariance matrix ]
Orbit Covariance (8×8)
  e q tp node peri i A1 A2
e 1.680648437300885E-14 -6.422868238309378E-14 5.046713918027123E-12 4.926383202490978E-13 -2.13738205998275E-12 -1.438608392145059E-13 4.201378979754255E-18 -1.087515620154945E-20
q -6.422868238309378E-14 2.485846888547805E-13 -2.091910668344236E-11 -2.230274227858105E-12 8.365271174467925E-12 6.053174264507038E-13 -1.915123218172964E-17 -5.969997279855326E-20
tp 5.046713918027123E-12 -2.091910668344236E-11 1.067005950486537E-8 -7.826167590080012E-10 2.050603510842726E-9 -1.482232236370334E-10 3.945337218837428E-15 3.849999329725433E-18
node 4.926383202490978E-13 -2.230274227858105E-12 -7.826167590080012E-10 2.378645574302696E-9 -2.329925072156435E-9 -6.037079293580474E-11 4.535250049645828E-16 2.503222585027295E-17
peri -2.13738205998275E-12 8.365271174467925E-12 2.050603510842726E-9 -2.329925072156435E-9 2.914062087300502E-9 4.83533879257431E-11 -3.074155777936795E-16 -2.68899139308391E-17
i -1.438608392145059E-13 6.053174264507038E-13 -1.482232236370334E-10 -6.037079293580474E-11 4.83533879257431E-11 6.617653659562966E-11 -1.211340560937165E-16 -1.596176842889628E-18
A1 4.201378979754255E-18 -1.915123218172964E-17 3.945337218837428E-15 4.535250049645828E-16 -3.074155777936795E-16 -1.211340560937165E-16 6.046409229337689E-21 9.128505206802142E-23
A2 -1.087515620154945E-20 -5.969997279855326E-20 3.849999329725433E-18 2.503222585027295E-17 -2.68899139308391E-17 -1.596176842889628E-18 9.128505206802142E-23 3.911655146681019E-24

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 8.7   1. K223/6 2 parameter fit from 206 observations, autocmod 2.9e
comet total magnitude slope K1 17.75   n/a K223/6 autocmod 2.9e
comet nuclear magnitude M2 13.9   01. K223/6 from 868 observations, autocmod 2.9e
comet nuclear magnitude slope K2 5.   n/a K223/6 autocmod 2.9e
comet nuclear phase coefficient PC 0.03   n/a K223/6 autocmod 2.9e
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 
 1933.3       1932 IV   1932i 
 1926.4       1925 VIII   1925f 
 1919.6       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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