Observation information
- date-obs: 2025-07-26
- time-obs: 15:38:48.542700000
- date-end: 2025-07-26
- time-end: 17:06:45.531000000
- obs_id: C09_011T06_9000006490
- exposure: 3222.81279409
- 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_011T06_9000006490_53159cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006490_53159cztM0_level2_quad_clean.evt
|
| Size (bytes) | 463,521,600 | 62,536,320 |
| Size | 442.0 MB
| 59.6 MB
|
| Events in quadrant A | 2,570,211 | 441,575 |
| Events in quadrant B | 4,637,516 | 420,711 |
| Events in quadrant C | 7,008,979 | 298,172 |
| Events in quadrant D | 2,578,135 | 405,596 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 92 | 0 |
| B | 0 | 92 | 0 |
| C | 0 | 92 | 0 |
| D | 0 | 92 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11015 | 1 |
| B | 0 | 17008 | 1 |
| C | 0 | 23995 | 1 |
| D | 0 | 11008 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4668 | 168 | 3.598972% |
| B | 4668 | 746 | 15.981148% |
| C | 4668 | 1614 | 34.575835% |
| D | 4668 | 120 | 2.570694% |
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 | 5278 | 4669 | 106 | 106 | 2.01% | 2.27% |  |
| B | 5278 | 4669 | 432 | 432 | 8.18% | 9.25% |  |
| C | 5278 | 4669 | 1527 | 1527 | 28.93% | 32.71% |  |
| D | 5278 | 4669 | 56 | 56 | 1.06% | 1.20% |  |
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 | 0 | 8 | 236462 | 1904.87 | 490 | 477 | 123.9 |
| A | 7 | 206 | 212218 | 1709.18 | 490 | 477 | 123.9 |
| A | 15 | 174 | 62498 | 500.63 | 490 | 477 | 123.9 |
| B | 10 | 191 | 1514971 | 15407.73 | 460 | 444 | 98.3 |
| B | 2 | 249 | 339974 | 3454.14 | 460 | 444 | 98.3 |
| B | 1 | 239 | 333613 | 3389.43 | 460 | 444 | 98.3 |
| C | 1 | 241 | 3222440 | 27647.16 | 416 | 411 | 116.5 |
| C | 15 | 224 | 939856 | 8061.07 | 416 | 411 | 116.5 |
| C | 0 | 240 | 484843 | 4156.75 | 416 | 411 | 116.5 |
| D | 10 | 172 | 176838 | 1279.1 | 478 | 455 | 137.9 |
| D | 2 | 120 | 140189 | 1013.33 | 478 | 455 | 137.9 |
| D | 12 | 3 | 95200 | 687.07 | 478 | 455 | 137.9 |
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 |  |