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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 2456340.5 (2013-Feb-17.0) TDB
Reference: JPL K105/3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4269336087237897 1.3798e-07  
a 3.692765084298589 2.8026e-07 AU
q 2.116199560689783 4.5837e-07 AU
i 5.895388696340608 2.054e-05 deg
node 286.4823207285431 0.00016191 deg
peri 58.34893449516752 0.00019845 deg
M 253.7351759940863 4.6244e-05 deg
tp 2457105.590791035224
(2015-Mar-24.09079103)
0.00040179 JED
period 2591.945992940738
7.10
0.00029507
8.079e-07
d
yr
n .1388917828459673 1.5812e-08 deg/d
Q 5.269330607907395 3.9992e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.893107146255486E-9 1.339E-10
A2 [EST] 2.367756467780083E-10 3.197E-11
A3 [EST] 1.450958662697129E-9 1.063E-10
DT [EST] -193.6523903829314 8.847
  Orbit Determination Parameters
   # obs. used (total)      791  
   data-arc span      8351 days (22.86 yr)  
   first obs. used      1987-04-11  
   last obs. used      2010-02-20  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .76525  
   data source      ORB  
   producer      Alan B. Chamberlin  
   solution date      2013-Feb-13 09:33:24  

Additional Information
 Earth MOID = 1.115 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 11.0 mag 1. K105/3 2 parameter fit from 414 observations, autocmod 2.5b
comet total magnitude slope K1 11.   n/a K105/3 autocmod 2.5b
comet nuclear magnitude M2 14.2 mag 0.9 K105/3 from 219 observations, autocmod 2.5b
comet nuclear magnitude slope K2 5.   n/a K105/3 autocmod 2.5b
comet nuclear phase coefficient PC 0.03   n/a K105/3 autocmod 2.5b
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 
 1958.5       1960 IX   1960c 
 1951.4   44P/1953 N1   1954 VI   1953d 
 1944.3   44P/1947 R1   1947 VII   1947j 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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