Observation information
- date-obs: 2025-05-19
- time-obs: 16:03:23.204700000
- date-end: 2025-05-19
- time-end: 17:57:06.189600000
- obs_id: C09_011T07_9000006470
- exposure: 2403.16313916
- 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_9000006470_52150cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52150cztM0_level2_quad_clean.evt
|
| Size (bytes) | 853,750,080 | 66,856,320 |
| Size | 814.2 MB
| 63.8 MB
|
| Events in quadrant A | 3,031,842 | 554,084 |
| Events in quadrant B | 6,448,583 | 554,415 |
| Events in quadrant C | 9,734,312 | 300,069 |
| Events in quadrant D | 11,943,892 | 212,939 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 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 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13020 | 2 |
| B | 0 | 23232 | 1 |
| C | 0 | 32856 | 1 |
| D | 0 | 39440 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5752 | 90 | 1.564673% |
| B | 5752 | 652 | 11.335188% |
| C | 5752 | 2887 | 50.191238% |
| D | 5753 | 3578 | 62.193638% |
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 | 6822 | 5752 | 32 | 32 | 0.47% | 0.56% |  |
| B | 6822 | 5752 | 458 | 458 | 6.71% | 7.96% |  |
| C | 6822 | 5753 | 2563 | 2563 | 37.57% | 44.55% |  |
| D | 6823 | 5753 | 3663 | 3663 | 53.69% | 63.67% |  |
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 | 14 | 254 | 213881 | 1395.16 | 605 | 590 | 152.9 |
| A | 4 | 3 | 57460 | 371.99 | 605 | 590 | 152.9 |
| A | 5 | 240 | 50677 | 327.63 | 605 | 590 | 152.9 |
| B | 4 | 170 | 2807043 | 22642.16 | 586 | 565 | 123.9 |
| B | 12 | 32 | 330806 | 2664.33 | 586 | 565 | 123.9 |
| B | 10 | 254 | 245586 | 1976.79 | 586 | 565 | 123.9 |
| C | 15 | 224 | 5834244 | 45832.19 | 455 | 448 | 127.3 |
| C | 15 | 193 | 958000 | 7522.84 | 455 | 448 | 127.3 |
| C | 4 | 5 | 340403 | 2670.8 | 455 | 448 | 127.3 |
| D | 6 | 42 | 8564433 | 67145.95 | 442 | 420 | 127.5 |
| D | 15 | 94 | 658382 | 5158.74 | 442 | 420 | 127.5 |
| D | 3 | 12 | 305836 | 2394.61 | 442 | 420 | 127.5 |
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 |  |