Observation information
- date-obs: 2025-05-04
- time-obs: 15:01:09.203800000
- date-end: 2025-05-04
- time-end: 17:03:11.184800000
- obs_id: C09_011T05_9000006466
- exposure: 3882.76732373
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_011T05_9000006466_51926cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51926cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,072,990,080 | 69,022,080 |
| Size | 1023.3 MB
| 65.8 MB
|
| Events in quadrant A | 8,830,547 | 476,394 |
| Events in quadrant B | 8,968,367 | 433,678 |
| Events in quadrant C | 10,061,916 | 396,369 |
| Events in quadrant D | 11,362,627 | 333,954 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30741 | 1 |
| B | 0 | 31096 | 1 |
| C | 0 | 34375 | 1 |
| D | 0 | 38203 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6432 | 1651 | 25.668532% |
| B | 6433 | 2365 | 36.763563% |
| C | 6433 | 2560 | 39.794808% |
| D | 6432 | 2868 | 44.589552% |
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 | 7321 | 6431 | 1562 | 1562 | 21.34% | 24.29% |  |
| B | 7323 | 6433 | 2085 | 2085 | 28.47% | 32.41% |  |
| C | 7322 | 6432 | 2307 | 2307 | 31.51% | 35.87% |  |
| D | 7322 | 6432 | 2895 | 2895 | 39.54% | 45.01% |  |
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 | 4 | 95 | 3798084 | 25214.95 | 601 | 586 | 150.6 |
| A | 12 | 3 | 1610249 | 10687.98 | 601 | 586 | 150.6 |
| A | 7 | 64 | 237634 | 1573.97 | 601 | 586 | 150.6 |
| B | 10 | 44 | 2950478 | 24943.39 | 550 | 531 | 118.3 |
| B | 4 | 206 | 2753469 | 23277.57 | 550 | 531 | 118.3 |
| B | 12 | 32 | 303967 | 2565.71 | 550 | 531 | 118.3 |
| C | 15 | 224 | 5171137 | 33121.32 | 553 | 548 | 156.1 |
| C | 15 | 218 | 808031 | 5172.51 | 553 | 548 | 156.1 |
| C | 0 | 193 | 524358 | 3355.38 | 553 | 548 | 156.1 |
| D | 12 | 17 | 6000475 | 39922.59 | 521 | 499 | 150.3 |
| D | 2 | 172 | 1366371 | 9088.23 | 521 | 499 | 150.3 |
| D | 6 | 42 | 1060536 | 7053.27 | 521 | 499 | 150.3 |
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 |  |