Field Name |
Length (bits) |
Bit |
Contents |
Description |
Item |
Total |
Algn |
Off |
exposureTeHistogram |
416 | 416 |
32 |
0 |
telemetry Packet |
Exposure Record, Timed Exposure, Histogram Mode (see table 19, 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 = 13 |
This field indicates the total number of 32-bit words in the telemetry packet |
formatTag |
6 | 6 |
1 |
42 |
uint6 = 18 |
This field identifies the content of the telemetry packet [see enum TlmFormatTag]: TTAG_SCI_TE_REC_HIST |
sequenceNumber |
16 | 16 |
1 |
48 |
uint16 |
This field is the sequence number of the telemetry packet |
runStartTime |
32 | 32 |
32 |
64 |
uint32 |
Science timestamp counter value at start of science run |
parameterBlockId |
32 | 32 |
32 |
96 |
uint32 |
Timed Exposure Parameter Block's Identifier field |
startExposureNumber |
32 | 32 |
32 |
128 |
uint32 |
The first Exposure Number used to produce the histogram |
endExposureNumber |
32 | 32 |
32 |
160 |
uint32 |
The last Exposure Number used to produce the histogram |
exposureCount |
32 | 32 |
32 |
192 |
uint32 |
Number of exposures, minus 1, accumulated in the histogram (required since some exposures between first and last may have been discarded by the FEP) |
outputNodeId |
2 | 2 |
1 |
224 |
uint2 |
Identify which CCD output node produced the histogram [see enum QuadId] |
ccdId |
4 | 4 |
1 |
226 |
uint4 |
Identify which CCD produced the data [see enum CcdId] |
fepId |
3 | 3 |
1 |
230 |
uint3 |
Identify which FEP processed the data [see enum FepId] |
fepTimestamp |
25 | 25 |
32 |
256 |
uint25 |
Fep Timestamp when FEP received Beginning of Frame mark of the first exposure |
minimumOverclock |
16 | 16 |
16 |
288 |
uint16 |
Minimum overclock pixel value |
maximumOverclock |
16 | 16 |
16 |
304 |
uint16 |
Maximum overclock pixel value |
meanOverclock |
16 | 16 |
16 |
320 |
uint16 |
Mean value of all overclock pixels |
varianceOverclockLow |
32 | 32 |
32 |
352 |
uint32 |
Least-significant 32-bits of 64-bit signed (2s complement) overclock variance |
varianceOverclockHigh |
32 | 32 |
32 |
384 |
int32 |
Most-significant 32-bits of 64-bit signed (2s complement) overclock variance |