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105P/Singer Brewster
Classification: Jupiter-family Comet          SPK-ID: 1000086
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


:
Orbital Elements at Epoch 2456364.5 (2013-Mar-13.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4090801715603757 3.1001e-07  
a 3.47004826613181 2.7483e-07 AU
q 2.050520326099825 9.4754e-07 AU
i 9.170894334227624 2.3131e-05 deg
node 192.4125590772428 0.00013297 deg
peri 46.63529856040196 0.00014286 deg
M 58.08508238263528 6.1339e-05 deg
tp 2455983.553656697598
(2012-Feb-26.05365670)
0.00038525 JED
period 2361.031059325197
6.46
0.00028049
7.679e-07
d
yr
n .1524757578169645 1.8114e-08 deg/d
Q 4.889576206163795 3.8725e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.625617974678633E-9 1.332E-10
A2 [EST] -2.244252852679116E-10 4.274E-11
A3 [EST] -1.164257417871125E-9 1.437E-10
DT [EST] -120.6821975006365 13.62
  Orbit Determination Parameters
   # obs. used (total)      333  
   data-arc span      9684 days (26.51 yr)  
   first obs. used      1986-05-03  
   last obs. used      2012-11-06  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .82437  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2013-Mar-03 19:26:47  

Additional Information
 Earth MOID = 1.05143 AU 
 T_jup = 2.971 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 12.6 mag 1. 36 from 151 observations, assumed slope, autocmod 2.5b
comet total magnitude slope K1 13.   n/a 36 autocmod 2.5b
comet nuclear magnitude M2 16.3 mag 0.9 36 from 103 observations, autocmod 2.5b
comet nuclear magnitude slope K2 5.   n/a 36 autocmod 2.5b
comet nuclear phase coefficient PC 0.03   n/a 36 autocmod 2.5b
diameter diameter 2.2 km n/a Scotti,J (1994) BAAS 26:1375  

105P/Singer Brewster          Discovered 1986-May-03 by Singer-Brewster, Stephen at Palomar Mountain Observatory, California (675)
discovered on plate/photo taken on discovery date as well as 5/4
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1992.8   105P/1992 G1   1992 XXVI   1992e 
 1986.3   105P/1986 J1   1986 XI   1986d 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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