Science | fits0¶
每个raw.dat对应一个fits文件，记录了探测器的科学观测数据，是tte|fits4的原始数据文件之一。raw.dat可能混杂来自多天的数据。
命名规则:sciYYYYMMDD_H_unpack-YYYYMMDD-UTC_Count.fits，文件名与raw.dat中日期相同，所以文件内可能混杂来自很多天的数据，而文件名与中数据归属日期无关。
单元列表¶
No. |
Name |
Ver |
Type |
Cards |
Dimensions |
Format |
|---|---|---|---|---|---|---|
0 |
PRIMARY |
1 |
PrimaryHDU |
4 |
() |
|
1 |
SCI_ORB_T |
1 |
BinTableHDU |
15 |
NR x 2C |
[J, J] |
2 |
SCI |
1 |
BinTableHDU |
108 |
NR x 3C |
[K, I, J] |
3 |
SCI_COUNT |
1 |
BinTableHDU |
15 |
NR x 2C |
[J, J] |
主头文件¶
字段 |
值 |
说明 |
|---|---|---|
SIMPLE |
T |
conforms to FITS standard |
BITPIX |
8 |
array data type |
NAXIS |
0 |
number of array dimensions |
EXTEND |
T |
扩展单元SCI_ORB_T头文件¶
字段 |
值 |
说明 |
|---|---|---|
XTENSION |
BINTABLE |
binary table extension |
BITPIX |
8 |
array data type |
NAXIS |
2 |
number of array dimensions |
NAXIS1 |
8 |
length of dimension 1 |
NAXIS2 |
N |
length of dimension 2 |
PCOUNT |
0 |
number of group parameters |
GCOUNT |
1 |
number of groups |
TFIELDS |
2 |
number of table fields |
EXTNAME |
SCI_ORB_T |
extension name |
TTYPE1 |
UTC |
|
TFORM1 |
J |
|
TUNIT1 |
s |
|
TTYPE2 |
PPS |
|
TFORM2 |
J |
|
TUNIT2 |
s |
扩展单元SCI头文件¶
字段 |
值 |
说明 |
|---|---|---|
XTENSION |
BINTABLE |
binary table extension |
BITPIX |
8 |
array data type |
NAXIS |
2 |
number of array dimensions |
NAXIS1 |
14 |
length of dimension 1 |
NAXIS2 |
N |
length of dimension 2 |
PCOUNT |
0 |
number of group parameters |
GCOUNT |
1 |
number of groups |
TFIELDS |
3 |
number of table fields |
EXTNAME |
SCI |
extension name |
TTYPE1 |
uScount |
|
TFORM1 |
K |
|
TUNIT1 |
1 |
|
TTYPE2 |
Channel |
|
TFORM2 |
I |
|
TUNIT2 |
1 |
|
TTYPE3 |
ADCvalue |
|
TFORM3 |
J |
|
TUNIT3 |
1 |
扩展单元SCI_COUNT头文件¶
字段 |
值 |
说明 |
|---|---|---|
XTENSION |
BINTABLE |
binary table extension |
BITPIX |
8 |
array data type |
NAXIS |
2 |
number of array dimensions |
NAXIS1 |
8 |
length of dimension 1 |
NAXIS2 |
N |
length of dimension 2 |
PCOUNT |
0 |
number of group parameters |
GCOUNT |
1 |
number of groups |
TFIELDS |
2 |
number of table fields |
EXTNAME |
SCI_COUNT |
extension name |
TTYPE1 |
Valid_count |
|
TFORM1 |
J |
|
TUNIT1 |
1 |
|
TTYPE2 |
Lost_count |
|
TFORM2 |
J |
|
TUNIT2 |
1 |
字段说明¶
字段 |
含义 |
说明 |
|---|---|---|
UTC |
UTC-0时间 |
|
PPS |
秒脉冲 |
pulse per second |
uScount |
晶振计数 |
count of crystal oscillator, usc |
Channel |
探测器通道 |
0~3 |
ADCValue |
ADC通道值 |
|
Valid_count |
有效计数 |
|
Lost_count |
因错误的丢失计数 |