Observation information
- date-obs: 2025-06-19
- time-obs: 18:02:49.815600000
- date-end: 2025-06-19
- time-end: 20:08:09.798400000
- obs_id: C09_011T06_9000006478
- exposure: 1136.58946115
- 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_52612cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52612cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,038,960,000 | 65,589,120 |
| Size | 990.8 MB
| 62.6 MB
|
| Events in quadrant A | 3,076,072 | 628,186 |
| Events in quadrant B | 11,952,076 | 333,744 |
| Events in quadrant C | 14,758,498 | 104,920 |
| Events in quadrant D | 8,181,300 | 474,387 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13679 | 1 |
| B | 0 | 39911 | 6 |
| C | 0 | 48181 | 1 |
| D | 0 | 28793 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6365 | 48 | 0.754124% |
| B | 6365 | 3450 | 54.202671% |
| C | 6365 | 5351 | 84.069128% |
| D | 6365 | 1278 | 20.078555% |
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 | 7520 | 6366 | 11 | 11 | 0.15% | 0.17% |  |
| B | 7520 | 6366 | 2894 | 2894 | 38.48% | 45.46% |  |
| C | 7520 | 6365 | 4613 | 4613 | 61.34% | 72.47% |  |
| D | 7520 | 6366 | 1168 | 1168 | 15.53% | 18.35% |  |
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 | 14 | 144833 | 848.72 | 674 | 657 | 169.9 |
| A | 4 | 249 | 64734 | 377.2 | 674 | 657 | 169.9 |
| A | 4 | 3 | 30351 | 174.8 | 674 | 657 | 169.9 |
| B | 10 | 128 | 7096434 | 66272.83 | 507 | 491 | 107.1 |
| B | 10 | 254 | 2171864 | 20279.62 | 507 | 491 | 107.1 |
| B | 10 | 44 | 161887 | 1507.36 | 507 | 491 | 107.1 |
| C | 15 | 248 | 13220905 | 179609.86 | 255 | 251 | 73.6 |
| C | 13 | 3 | 253525 | 3440.87 | 255 | 251 | 73.6 |
| C | 2 | 12 | 45849 | 619.47 | 255 | 251 | 73.6 |
| D | 2 | 62 | 1837552 | 10509.43 | 609 | 583 | 174.8 |
| D | 8 | 176 | 1028442 | 5880.45 | 609 | 583 | 174.8 |
| D | 6 | 42 | 754856 | 4315.25 | 609 | 583 | 174.8 |
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 |  |