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44P/Reinmuth 2
Classification: Jupiter-family Comet          SPK-ID: 1000071
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2456981.5 (2014-Nov-20.0) TDB
Reference: JPL K105/6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4265483668906708 1.1709e-07  
a 3.694546605777967 8.8967e-08 AU
q 2.118643784681904 4.3443e-07 AU
i 5.895881617502205 1.7021e-05 deg
node 286.464275352068 0.00014641 deg
peri 58.28755209542247 0.00018252 deg
M 342.768006017291 3.1276e-05 deg
tp 2457105.657564437925
(2015-Mar-24.15756444)
0.0002274 JED
period 2593.821889823243
7.10
9.3691e-05
2.565e-07
d
yr
n .1387913339047857 5.0133e-09 deg/d
Q 5.27044942687403 1.2692e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.76133866931968E-9 5.141E-11
A2 [EST] 8.470704948492989E-10 1.001E-11
A3 [EST] 1.075361668648205E-9 5.275E-11
DT [EST] -249.8088117400693 4.688
  Orbit Determination Parameters
   # obs. used (total)      813  
   data-arc span      19876 days (54.42 yr)  
   first obs. used      1960-05-22  
   last obs. used      2014-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .81836  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2014-Nov-10 13:34:16  

Additional Information
 Earth MOID = 1.11733 AU 
 T_jup = 2.925 
[ 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 11.4 mag 01. K105/6 2 parameter fit from 431 observations, autocmod 2.6
comet total magnitude slope K1 10.   n/a K105/6 autocmod 2.6
comet nuclear magnitude M2 14.4 mag 0.9 K105/6 from 273 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a K105/6 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a K105/6 autocmod 2.6
diameter diameter 3.22 km n/a Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A. (2004) Comets II, pp. 223-264  

44P/Reinmuth 2          Discovered 1947-Sep-10 by Reinmuth, Karl at Heidelberg, Germany (024)
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1993.9       1994 XVIII   1993g 
 1986.8       1987 XXVI   1987l 
 1979.7       1981 III   1980n 
 1972.6       1974 VI   1973g 
 1965.5       1967 XI   1967e 
 1958.4       1960 IX   1960c 
 1951.3   44P/1953 N1   1954 VI   1953d 
 1944.2   44P/1947 R1   1947 VII   1947j 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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