Observation information
- date-obs: 2025-06-15
- time-obs: 03:01:42.679300000
- date-end: 2025-06-15
- time-end: 05:07:06.662900000
- obs_id: C09_011T06_9000006478
- exposure: 4091.40445071
- 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_9000006478_52543cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52543cztM0_level2_quad_clean.evt
|
| Size (bytes) | 700,994,880 | 85,841,280 |
| Size | 668.5 MB
| 81.9 MB
|
| Events in quadrant A | 3,051,741 | 620,834 |
| Events in quadrant B | 4,913,439 | 622,870 |
| Events in quadrant C | 5,803,782 | 549,315 |
| Events in quadrant D | 11,664,585 | 342,142 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14217 | 1 |
| B | 0 | 19225 | 1 |
| C | 0 | 22017 | 1 |
| D | 0 | 39235 | 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 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6644 | 32 | 0.481638% |
| B | 6645 | 482 | 7.253574% |
| C | 6645 | 634 | 9.541008% |
| D | 6645 | 2875 | 43.265613% |
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 | 7524 | 6645 | 13 | 13 | 0.17% | 0.20% |  |
| B | 7525 | 6646 | 337 | 337 | 4.48% | 5.07% |  |
| C | 7525 | 6646 | 535 | 535 | 7.11% | 8.05% |  |
| D | 7525 | 6646 | 2702 | 2702 | 35.91% | 40.66% |  |
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 | 3 | 62 | 109750 | 651.74 | 674 | 658 | 167.4 |
| A | 12 | 80 | 52592 | 310.27 | 674 | 658 | 167.4 |
| A | 13 | 248 | 45196 | 266.08 | 674 | 658 | 167.4 |
| B | 10 | 44 | 703427 | 5076.03 | 649 | 626 | 138.5 |
| B | 0 | 213 | 617721 | 4457.01 | 649 | 626 | 138.5 |
| B | 4 | 170 | 331395 | 2389.0 | 649 | 626 | 138.5 |
| C | 15 | 248 | 752332 | 4297.73 | 627 | 620 | 174.9 |
| C | 12 | 254 | 732932 | 4186.81 | 627 | 620 | 174.9 |
| C | 13 | 3 | 683792 | 3905.87 | 627 | 620 | 174.9 |
| D | 6 | 42 | 7236414 | 47839.81 | 521 | 497 | 151.3 |
| D | 8 | 176 | 937629 | 6195.79 | 521 | 497 | 151.3 |
| D | 12 | 17 | 243885 | 1609.14 | 521 | 497 | 151.3 |
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 |  |