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\n Synopsis
		sfrevent < reflFile.rsf deriv=derivFile.rsf > dataFile.rsf tn=1001 hn=51 sn=1 to=0.f ho=0.f so=0.f td=0.004f hd=0.05f sd=0.025f eps=0.5 * hStep vel=2.f

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\n Parameters
		\n \n \n \n   string deriv= \tfirst derivative estimated along the reflection boundary (auxiliary input file name) \n \n \n\n \n \n \n   float eps=0.5 * hStep \treceiver position accuracy (in km) \n \n \n\n \n \n \n   float hd=0.05f \tstep in offset (in km) \n \n \n\n \n \n \n   int hn=51 \tnumber of offsets \n \n \n\n \n \n \n   float ho=0.f \tstart offset (in s) \n \n \n\n \n \n \n   float sd=0.025f \tstep in source position (in km) \n \n \n\n \n \n \n   int sn=1 \tnumber of sources \n \n \n\n \n \n \n   float so=0.f \tstart source position (in s) \n \n \n\n \n \n \n   float td=0.004f \tstep in time (in s) \n \n \n\n \n \n \n   int tn=1001 \tnumber of time samples \n \n \n\n \n \n \n   float to=0.f \tstart time (in s) \n \n \n\n \n \n \n   float vel=2.f \tconstant velocity value (in km/s) \n \n \n

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