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

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

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 two-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 is not working, here are some notes that might help.
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 2455860.5 (2011-Oct-26.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4092921638289355 8.7878e-08  
a 3.471809698675179 2.0327e-08 au
q 2.05082519470213 3.0376e-07 au
i 9.170617424610311 1.7311e-05 deg
node 192.4200557547587 4.2352e-05 deg
peri 46.6837131983796 7.0793e-05 deg
M 341.2295966722326 3.0174e-05 deg
tp 2455983.697926593761
(2012-Feb-26.19792659)
0.00019775 TDB
period 2362.829013276682
6.47
2.0751e-05
5.681e-08
d
yr
n .1523597340210266 1.3381e-09 deg/d
Q 4.892794202648227 2.8647e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -6.832566625367815E-10 1.082E-12
  Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      12199 days (33.40 yr)  
   first obs. used      1986-05-03  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .77422  
   source      ORB  
   producer      Javier Roa  
   solution date      2019-Oct-10 10:25:04  

Additional Information
 Earth MOID = 1.05045 au 
 Jupiter MOID = .365801 au 
 T_jup = 2.970 
[ 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 13.7   0.9 45 2 parameter fit from 367 observations, autocmod 2.8
comet total magnitude slope K1 10.   n/a 45 autocmod 2.8
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
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 
 1992.7   105P/1992 G1   1992 XXVI   1992e 
 1986.3   105P/1986 J1   1986 XI   1986d 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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