Observation information
- date-obs: 2025-07-19
- time-obs: 09:31:10.895700000
- date-end: 2025-07-19
- time-end: 11:32:02.880800000
- obs_id: C09_011T07_9000006488
- exposure: 4298.04264754
- 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_011T07_9000006488_53052cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006488_53052cztM0_level2_quad_clean.evt
|
| Size (bytes) | 803,511,360 | 85,337,280 |
| Size | 766.3 MB
| 81.4 MB
|
| Events in quadrant A | 6,219,306 | 584,595 |
| Events in quadrant B | 5,184,343 | 621,243 |
| Events in quadrant C | 10,204,380 | 398,957 |
| Events in quadrant D | 7,608,103 | 503,572 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23192 | 1 |
| B | 0 | 20258 | 1 |
| C | 0 | 35018 | 1 |
| D | 0 | 27355 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6812 | 825 | 12.110981% |
| B | 6812 | 826 | 12.125661% |
| C | 6813 | 2719 | 39.908998% |
| D | 6813 | 1244 | 18.259210% |
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 | 7252 | 6813 | 587 | 587 | 8.09% | 8.62% |  |
| B | 7252 | 6813 | 514 | 514 | 7.09% | 7.54% |  |
| C | 7253 | 6814 | 2528 | 2528 | 34.85% | 37.10% |  |
| D | 7253 | 6814 | 1110 | 1110 | 15.30% | 16.29% |  |
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 | 9 | 191 | 2326939 | 13731.95 | 679 | 663 | 169.4 |
| A | 7 | 206 | 371056 | 2186.42 | 679 | 663 | 169.4 |
| A | 0 | 8 | 370971 | 2185.92 | 679 | 663 | 169.4 |
| B | 10 | 63 | 1157499 | 8063.31 | 672 | 649 | 143.5 |
| B | 1 | 255 | 932142 | 6492.56 | 672 | 649 | 143.5 |
| B | 4 | 81 | 78396 | 541.9 | 672 | 649 | 143.5 |
| C | 1 | 241 | 5146421 | 33010.8 | 562 | 555 | 155.9 |
| C | 15 | 224 | 1028974 | 6597.32 | 562 | 555 | 155.9 |
| C | 13 | 3 | 657130 | 4211.93 | 562 | 555 | 155.9 |
| D | 12 | 17 | 1683993 | 9109.18 | 646 | 615 | 184.8 |
| D | 2 | 172 | 1307815 | 7073.59 | 646 | 615 | 184.8 |
| D | 8 | 176 | 1100308 | 5950.72 | 646 | 615 | 184.8 |
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 |  |