Epoch and Epoch Reference Gate in GPOD SARvatore/SARINvatore Services Data Products

Dear Users,

Please, be informed this is the correct recipe to retrieve the Epoch ( in seconds or gates) and Epoch Reference Gate in GPOD SARvatore/SARINvatore Services data products:

## Epoch and Epoch Reference Gate in GPOD SARvatore/SARINvatore Services Data Products

Dear Users,

Please, be informed this is the correct recipe to retrieve the Epoch ( in seconds or gates) and Epoch Reference Gate in GPOD SARvatore/SARINvatore Services data products:

N_start=N_FFT*over_sampling

N_last=N_FFT*over_sampling+extra_sample*over_sampling*2

dt=1/(Bandwidth*over_sampling)

time= -dt*(N_start/2) : dt : dt*(N_last-1)/2

Index=time*(1/dt)

where Index is zero, this is the Epoch reference gate (Epoch_Reference_Gate)

Finally, the epoch in seconds at 20 Hz is:

Epoch_20Hz=Range_Unc_20Hz*2/speedlight-Window_Delay_20Hz

Epoch_20Hz in gates is given by:

Epoch_Gates_20Hz=Epoch_20Hz* Bandwidth *over_sampling +Epoch_Reference_Gate

Salvatore Dinardo

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