Observation information
- date-obs: 2025-05-10
- time-obs: 18:27:35.981600000
- date-end: 2025-05-10
- time-end: 20:31:20.960100000
- obs_id: C09_011T06_9000006468
- exposure: 4349.42180622
- 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_9000006468_52018cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52018cztM0_level2_quad_clean.evt
|
| Size (bytes) | 860,558,400 | 79,464,960 |
| Size | 820.7 MB
| 75.8 MB
|
| Events in quadrant A | 6,107,590 | 543,605 |
| Events in quadrant B | 5,717,221 | 601,117 |
| Events in quadrant C | 9,627,193 | 419,556 |
| Events in quadrant D | 9,922,553 | 406,634 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22399 | 1 |
| B | 0 | 21370 | 1 |
| C | 0 | 32938 | 1 |
| D | 0 | 33868 | 8 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6230 | 925 | 14.847512% |
| B | 6231 | 754 | 12.100786% |
| C | 6231 | 2224 | 35.692505% |
| D | 6230 | 2000 | 32.102729% |
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 | 7425 | 6231 | 625 | 625 | 8.42% | 10.03% |  |
| B | 7426 | 6232 | 375 | 375 | 5.05% | 6.02% |  |
| C | 7426 | 6232 | 2223 | 2223 | 29.94% | 35.67% |  |
| D | 7425 | 6231 | 2221 | 2221 | 29.91% | 35.64% |  |
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 | 2 | 48 | 1824836 | 11885.89 | 611 | 597 | 153.5 |
| A | 4 | 95 | 1294408 | 8429.87 | 611 | 597 | 153.5 |
| A | 4 | 3 | 222208 | 1443.91 | 611 | 597 | 153.5 |
| B | 5 | 185 | 1038648 | 7796.64 | 632 | 611 | 133.1 |
| B | 12 | 18 | 836411 | 6277.65 | 632 | 611 | 133.1 |
| B | 7 | 0 | 361237 | 2708.64 | 632 | 611 | 133.1 |
| C | 15 | 224 | 4717045 | 29654.55 | 571 | 566 | 159.0 |
| C | 4 | 5 | 1150668 | 7231.19 | 571 | 566 | 159.0 |
| C | 9 | 38 | 631387 | 3966.25 | 571 | 566 | 159.0 |
| D | 6 | 42 | 2097164 | 13047.81 | 560 | 534 | 160.7 |
| D | 12 | 17 | 1822215 | 11336.74 | 560 | 534 | 160.7 |
| D | 15 | 94 | 1311292 | 8157.15 | 560 | 534 | 160.7 |
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 |  |