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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.


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:
Orbital Elements at Epoch 2453126.5 (2004-May-01.0) TDB
Reference: JPL K157/5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6232892711821078 1.7498e-08  
a 3.609665546424225 4.2061e-08 au
q 1.359799738782305 6.204e-08 au
i 30.31307021679391 5.9182e-06 deg
node 75.43597686258941 1.2924e-05 deg
peri 353.3506872274951 1.3642e-05 deg
M 137.9304349204968 3.9026e-06 deg
tp 2452166.753630306326
(2001-Sep-14.25363031)
1.9292e-05 TDB
period 2504.948913478551
6.86
4.3783e-05
1.199e-07
d
yr
n .1437155057585898 2.5119e-09 deg/d
Q 5.859531354066145 6.8277e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.895695530204052E-9 2.286E-11
A2 [EST] -7.833075347206687E-11 7.025E-12
A3 [EST] 2.854308247393968E-10 3.062E-11
DT [EST] -47.24576827269382 1.397
  Orbit Determination Parameters
   # obs. used (total)      2845  
   data-arc span      15925 days (43.60 yr)  
   first obs. used      1973-08-23  
   last obs. used      2017-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .78518  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2017-May-07 17:25:46  

Additional Information
 Earth MOID = .377543 au 
 Jupiter MOID = .456352 au 
 T_jup = 2.566 
[ 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 8.2   2. K157/5 2 parameter fit from 510 observations, autocmod 2.6i
comet total magnitude slope K1 17.   n/a K157/5 autocmod 2.6i
comet nuclear magnitude M2 13.8   1. K157/5 from 1077 observations, autocmod 2.6i
comet nuclear magnitude slope K2 5.   n/a K157/5 autocmod 2.6i
comet nuclear phase coefficient PC 0.03   n/a K157/5 autocmod 2.6i
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 
 1994.8       1994 XXX   1994l 
 1988.0       1987 XXXIII   1987p 
 1981.1       1981 IV   1980i 
 1974.3       1974 VII   1973m 
 1967.4       1967 VIII   1967m 
 1960.6       1960 V   1960k 
 1953.7       1953 IV   1954b 
 1933.1       1932 IV   1932i 
 1926.3       1925 VIII   1925f 
 1919.4       1918 IV   1918c 
 1912.5   19P/1911 S1   1911 VIII   1911e 
 1905.7   19P/1904 Y2   1905 II   1904e 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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