Table 17.

SIS telemetered PHA event contents.

Item no. Contents Bits
1 TOF-1 (a) 11
2 TOF-2 (b) 11
3 TOF-3 (c) 11
4 SSD energy 12
5 SSD ramp (0 = high gain) (d) 1
6 Test pulser on/off (1/0) 1
7 Priority 2
8 MCP pulse size (e) 7

Total: 56

Notes. There is no telescope ID bit since PHA events go into separate packets for each telescope.

(a)

Start-1 Stop.

(b)

Start-2 Stop.

(c)

Start-1 Start-2.

(d)

SSD ramp (gain): 0 = high; 1 = low (E ≳ 45 MeV).

(e)

MCP stack whose pulse width is measured is selectable by ground command.

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