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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.


:
Orbital Elements at Epoch 2455871.5 (2011-Nov-06.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4092903547464972 8.7482e-08  
a 3.471813028541462 2.0485e-08 au
q 2.050833442476216 3.0225e-07 au
i 9.170614994406176 1.728e-05 deg
node 192.420042683955 4.2306e-05 deg
peri 46.6827608522571 6.9479e-05 deg
M 342.9059044005843 2.946e-05 deg
tp 2455983.695786518497
(2012-Feb-26.19578652)
0.00019307 TDB
period 2362.832412616176
6.47
2.0913e-05
5.726e-08
d
yr
n .1523595148254296 1.3485e-09 deg/d
Q 4.892792614606708 2.887e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -6.830344388539566E-10 1.066E-12
  Orbit Determination Parameters
   # obs. used (total)      760  
   data-arc span      12199 days (33.40 yr)  
   first obs. used      1986-05-03  
   last obs. used      2019-09-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .77136  
   source      ORB  
   producer      Javier Roa  
   solution date      2021-May-04 14:14:24  

Additional Information
 Earth MOID = 1.05305 au 
 Jupiter MOID = .365787 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 13.8   0.9 46 2 parameter fit from 370 observations, autocmod 2.9c
comet total magnitude slope K1 9.75   n/a 46 autocmod 2.9c
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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