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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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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 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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