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130P/McNaught-Hughes
Classification: Jupiter-family Comet          SPK-ID: 1000134
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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:
Orbital Elements at Epoch 2455797.5 (2011-Aug-24.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .406738707574909 9.6472e-08  
a 3.536509937680266 1.9193e-07 au
q 2.098074456302373 3.261e-07 au
i 7.307309105263396 6.398e-06 deg
node 89.81289187480661 6.5508e-05 deg
peri 224.3736637933758 7.8331e-05 deg
M 8.922286273971444 1.2794e-05 deg
tp 2455737.294744488128
(2011-Jun-24.79474449)
8.5209e-05 TDB
period 2429.185896837016
6.65
0.00019775
5.414e-07
d
yr
n .1481977976525993 1.2064e-08 deg/d
Q 4.97494541905816 2.6999e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.563459882542453E-10 8.947E-11
A2 [EST] 3.596247524528032E-13 3.874E-12
  Orbit Determination Parameters
   # obs. used (total)      1132  
   data-arc span      10010 days (27.41 yr)  
   first obs. used      1991-09-14  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6786  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2019-May-15 16:21:44  

Additional Information
 Earth MOID = 1.09113 au 
 Jupiter MOID = .479954 au 
 T_jup = 2.965 
[ 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 13.3   0.9 44 2 parameter fit from 351 observations, autocmod 2.6q
comet total magnitude slope K1 9.   n/a 44 autocmod 2.6q
diameter diameter 4.2 km n/a Scotti,J (1994) BAAS 26:1375  

130P/McNaught-Hughes          Discovered 1991-Sep-30 by McNaught, Robert H. at U. K. Schmidt Telescope Unit, Siding Spring
discovered on plate/photo taken on discovery date
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1998.2   130P/1997 H1       
 1991.5   130P/1991 S1   1991 IX   1991y 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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