Observation information
- date-obs: 2025-07-06
- time-obs: 12:48:17.525700000
- date-end: 2025-07-06
- time-end: 14:45:45.510000000
- obs_id: C09_011T08_9000006482
- exposure: 3924.50273079
- 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_011T08_9000006482_52861cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006482_52861cztM0_level2_quad_clean.evt
|
| Size (bytes) | 728,991,360 | 76,651,200 |
| Size | 695.2 MB
| 73.1 MB
|
| Events in quadrant A | 7,533,694 | 497,483 |
| Events in quadrant B | 9,341,616 | 413,549 |
| Events in quadrant C | 4,502,251 | 510,077 |
| Events in quadrant D | 5,151,856 | 487,092 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26491 | 6 |
| B | 0 | 31887 | 1 |
| C | 0 | 17466 | 1 |
| D | 0 | 19320 | 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 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5892 | 1234 | 20.943652% |
| B | 5893 | 2255 | 38.265739% |
| C | 5893 | 533 | 9.044629% |
| D | 5893 | 599 | 10.164602% |
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 | 7047 | 5893 | 1035 | 1035 | 14.69% | 17.56% |  |
| B | 7047 | 5892 | 1652 | 1652 | 23.44% | 28.04% |  |
| C | 7048 | 5894 | 380 | 380 | 5.39% | 6.45% |  |
| D | 7048 | 5894 | 477 | 477 | 6.77% | 8.09% |  |
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 | 3428165 | 23095.79 | 593 | 580 | 148.4 |
| A | 3 | 62 | 1075723 | 7244.54 | 593 | 580 | 148.4 |
| A | 5 | 241 | 106404 | 713.06 | 593 | 580 | 148.4 |
| B | 8 | 3 | 6486759 | 58357.08 | 528 | 510 | 111.1 |
| B | 0 | 213 | 237001 | 2127.72 | 528 | 510 | 111.1 |
| B | 10 | 254 | 80344 | 718.27 | 528 | 510 | 111.1 |
| C | 15 | 224 | 1377125 | 8404.25 | 591 | 584 | 163.8 |
| C | 13 | 3 | 352139 | 2146.36 | 591 | 584 | 163.8 |
| C | 1 | 44 | 89222 | 541.17 | 591 | 584 | 163.8 |
| D | 8 | 176 | 1058906 | 6287.02 | 594 | 568 | 168.3 |
| D | 2 | 37 | 816610 | 4847.67 | 594 | 568 | 168.3 |
| D | 12 | 17 | 230924 | 1368.42 | 594 | 568 | 168.3 |
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 |  |