Observation information
- date-obs: 2025-05-28
- time-obs: 09:56:26.490200000
- date-end: 2025-05-28
- time-end: 11:57:04.474800000
- obs_id: C09_011T05_9000006474
- exposure: 527.505944073
- 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_9000006474_52280cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006474_52280cztM0_level2_quad_clean.evt
|
| Size (bytes) | 728,386,560 | 71,130,240 |
| Size | 694.6 MB
| 67.8 MB
|
| Events in quadrant A | 3,800,838 | 559,157 |
| Events in quadrant B | 5,397,935 | 600,689 |
| Events in quadrant C | 12,800,329 | 50,963 |
| Events in quadrant D | 4,486,607 | 514,571 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15489 | 1 |
| B | 0 | 20236 | 1 |
| C | 0 | 42212 | 1 |
| D | 0 | 17554 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6129 | 398 | 6.493718% |
| B | 6129 | 482 | 7.864252% |
| C | 6129 | 5666 | 92.445750% |
| D | 6129 | 254 | 4.144232% |
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 | 7239 | 6130 | 278 | 278 | 3.84% | 4.54% |  |
| B | 7239 | 6130 | 336 | 336 | 4.64% | 5.48% |  |
| C | 7238 | 6128 | 4200 | 4200 | 58.03% | 68.54% |  |
| D | 7239 | 6130 | 192 | 192 | 2.65% | 3.13% |  |
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 | 6 | 162 | 771667 | 4941.18 | 625 | 611 | 156.0 |
| A | 4 | 249 | 91424 | 581.96 | 625 | 611 | 156.0 |
| A | 4 | 3 | 79144 | 503.27 | 625 | 611 | 156.0 |
| B | 7 | 0 | 973348 | 7411.88 | 620 | 601 | 131.2 |
| B | 0 | 213 | 384171 | 2922.63 | 620 | 601 | 131.2 |
| B | 4 | 171 | 302308 | 2298.87 | 620 | 601 | 131.2 |
| C | 15 | 158 | 7000800 | 102080.13 | 246 | 244 | 68.6 |
| C | 15 | 224 | 1409539 | 20549.94 | 246 | 244 | 68.6 |
| C | 0 | 161 | 1188025 | 17319.89 | 246 | 244 | 68.6 |
| D | 15 | 93 | 947592 | 5486.05 | 608 | 582 | 172.6 |
| D | 12 | 18 | 197043 | 1138.1 | 608 | 582 | 172.6 |
| D | 9 | 49 | 120769 | 696.25 | 608 | 582 | 172.6 |
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 |  |