Yesterday Joe ran Keith's script to generate the L1 science frame channel list broken down by subsystem and data rate. I have ran this script on the H1 DAQ and compared the two lists. The two report files are attached below.
Here is a summary of the differences per subsystem. For each subsystem, the differences are given as [number of H1 channels, number of L1 channels] for each acquistion rate. Green cell means L1>H1, beige cell H1>L1. Blank cells mean either no channels at that rate or no difference in the number of channels between the sites.
| system | 32k | 16k | 8k | 4k | 2k | 1024 | 512 | 256 |
| susauxb123 | [50,67] | |||||||
| psliss | [0,1] | [6,7] | ||||||
| pslpmc | [6,2] | |||||||
| pemcs | [23,17] | [15,9] | [5,9] | [37,24] | [4,0] | [10,7] | ||
| oaf | [2,8] | |||||||
| asc | [53,47] | [0,22] | ||||||
| susetmxpi | [2,0] | |||||||
| susetmypi | [2,0] | |||||||
| pemey | [4,3] | [9,6] | [3,2] | [12,6] | [4,0] | [9,13] | ||
| pemex | [4,3] | [9,6] | [3,2] | [12,6] | [4,0] | [9,13] | ||
| alsex | [1,0] | [2,0] | ||||||
| alsey | [1,0] | [2,0] | ||||||
| iscex | [1,0] | [7,10] | ||||||
| iscey | [1,0] | [7,10] | ||||||
Calculating the difference between additional L1 channels verses H1 channels and taking the data rates into account gives an additional data rate of 984 kBytes/second for H1 frames. This means the H1 64 second science frame should be approximately 64MB larger than L1.
I compared some L1 and H1 science frame sizes, the H1 frame was larger by 78, 95, 82, 83 MB. This roughly agrees with the calculation, there will be variation due to the overall compression of the entire frame.
