Field Name | Length (bits) | Bit | Contents | Description | ||
---|---|---|---|---|---|---|
Item | Total | Algn | Off | |||
dataCcGraded | 96 + 34*n | 32 | 0 | telemetry Packet |
Data Packet, Continuous Clocking, Graded Mode (see table 35, swreq Rev. I) | |
header |
64 | 64 | 32 | 0 | telemetry Header |
Telemetry Packet Header |
synch |
32 | 32 | 32 | 0 | uint32 = 0x736f4166 |
This field delimits the start of a telemetry packet. |
telemetryLength |
10 | 10 | 1 | 32 | uint10 = 3+(17*n)/16 |
This field indicates the total number of 32-bit words in the telemetry packet |
formatTag |
6 | 6 | 1 | 42 | uint6 = 31 |
This field identifies the content of the telemetry packet [see enum TlmFormatTag]: TTAG_SCI_CC_DAT_GRADED |
sequenceNumber |
16 | 16 | 1 | 48 | uint16 |
This field is the sequence number of the telemetry packet |
ccdId |
4 | 4 | 1 | 64 | uint4 |
Identify which CCD produced the data [see enum CcdId] |
fepId |
3 | 3 | 1 | 68 | uint3 |
Identify which FEP processed the data [see enum FepId] |
dataPacketNumber |
20 | 20 | 1 | 71 | uint20 |
Data Packet Number within the current CCD exposure |
events[(16*pl-48)/17] |
34 | 34*n | 32 | 96 | event CcGraded |
Array of Continuous Clocking Graded Mode events |
transferRow |
9 | 9 | 1 | 96+ 34*i |
uint9 |
Transfer Row counter (relative to start of frame) of center pixel of the event |
ccdColumn |
10 | 10 | 1 | 105+ 34*i |
uint10 |
CCD Column position of center pixel of the event |
eventAmplitude |
13 | 13 | 1 | 115+ 34*i |
uint13 |
Amplitude of the 1x3 Event |
gradeCode |
2 | 2 | 1 | 128+ 34*i |
uint2 |
Graded Code of the event [see Event Grade Code Definition] |
i | the index of an element in the events array (0 < i < n) |
n | the dimension of the events array [(16*pl-48)/17] |
pl | the value of the telemetryLength field |