Observation information
- date-obs: 2023-05-18
- time-obs: 16:02:50.150700000
- date-end: 2023-05-18
- time-end: 20:48:43.126700000
- obs_id: T05_106T01_9000005642
- exposure: 9537.51990873
- sourceid: 4U 1626-67
- observer: cjain
- ra_pnt: 248.0697
- dec_pnt: -67.46095
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T05_106T01_9000005642_41295cztM0_level2.fits
| modeM0/AS1T05_106T01_9000005642_41295cztM0_level2_quad_clean.evt
|
Size (bytes) | 966,294,720 | 195,984,000 |
Size | 921.5 MB
| 186.9 MB
|
Events in quadrant A | 6,658,481 | 1,387,306 |
Events in quadrant B | 5,914,818 | 1,436,376 |
Events in quadrant C | 6,691,350 | 1,320,133 |
Events in quadrant D | 15,510,168 | 903,028 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27635 | 4 |
B | 0 | 26231 | 3 |
C | 0 | 28139 | 3 |
D | 0 | 54961 | 3 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 264 | 0 |
B | 0 | 264 | 0 |
C | 0 | 264 | 0 |
D | 0 | 264 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 43 | 0 |
B | 0 | 43 | 0 |
C | 0 | 43 | 0 |
D | 0 | 43 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 12827 | 23 | 0.179309% |
B | 12827 | 27 | 0.210493% |
C | 12827 | 311 | 2.424573% |
D | 12827 | 3540 | 27.598035% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 17153 | 12830 | 17 | 17 | 0.10% | 0.13% |  |
B | 17153 | 12830 | 11 | 11 | 0.06% | 0.09% |  |
C | 17153 | 12830 | 305 | 305 | 1.78% | 2.38% |  |
D | 17153 | 12828 | 3362 | 3362 | 19.60% | 26.21% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 10 | 83 | 1044028 | 3677.83 | 1393 | 1366 | 283.5 |
A | 12 | 189 | 172689 | 604.31 | 1393 | 1366 | 283.5 |
A | 6 | 10 | 50622 | 173.74 | 1393 | 1366 | 283.5 |
B | 7 | 202 | 228525 | 846.03 | 1392 | 1348 | 268.5 |
B | 0 | 245 | 84070 | 308.07 | 1392 | 1348 | 268.5 |
B | 0 | 229 | 53238 | 193.24 | 1392 | 1348 | 268.5 |
C | 0 | 10 | 884496 | 2825.38 | 1349 | 1356 | 312.6 |
C | 15 | 214 | 532180 | 1698.23 | 1349 | 1356 | 312.6 |
C | 13 | 61 | 8929 | 24.23 | 1349 | 1356 | 312.6 |
D | 1 | 47 | 4393935 | 15369.27 | 1170 | 1135 | 285.8 |
D | 2 | 249 | 2900762 | 10145.05 | 1170 | 1135 | 285.8 |
D | 1 | 52 | 1572648 | 5498.32 | 1170 | 1135 | 285.8 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |