Observation information
- date-obs: 2025-06-23
- time-obs: 03:59:24.149900000
- date-end: 2025-06-23
- time-end: 05:55:25.134500000
- obs_id: C09_011T07_9000006480
- exposure: 5168.99916506
- 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_9000006480_52843cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52843cztM0_level2_quad_clean.evt
|
| Size (bytes) | 608,022,720 | 83,387,520 |
| Size | 579.9 MB
| 79.5 MB
|
| Events in quadrant A | 6,305,348 | 549,350 |
| Events in quadrant B | 5,529,477 | 582,756 |
| Events in quadrant C | 4,834,048 | 489,147 |
| Events in quadrant D | 5,378,390 | 488,500 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22942 | 1 |
| B | 0 | 20455 | 1 |
| C | 0 | 18873 | 1 |
| D | 0 | 20114 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5941 | 556 | 9.358694% |
| B | 5942 | 515 | 8.667115% |
| C | 5942 | 825 | 13.884214% |
| D | 5941 | 650 | 10.940919% |
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 | 6961 | 5941 | 496 | 496 | 7.13% | 8.35% |  |
| B | 6962 | 5942 | 373 | 373 | 5.36% | 6.28% |  |
| C | 6962 | 5943 | 774 | 774 | 11.12% | 13.02% |  |
| D | 6961 | 5942 | 649 | 649 | 9.32% | 10.92% |  |
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 | 1546175 | 10103.44 | 609 | 596 | 153.0 |
| A | 3 | 62 | 703661 | 4595.93 | 609 | 596 | 153.0 |
| A | 12 | 80 | 526206 | 3435.91 | 609 | 596 | 153.0 |
| B | 8 | 3 | 1658547 | 12939.12 | 603 | 583 | 128.1 |
| B | 5 | 172 | 831470 | 6484.43 | 603 | 583 | 128.1 |
| B | 10 | 254 | 117843 | 915.12 | 603 | 583 | 128.1 |
| C | 15 | 224 | 2193313 | 13926.08 | 567 | 562 | 157.5 |
| C | 15 | 147 | 117942 | 745.48 | 567 | 562 | 157.5 |
| C | 12 | 249 | 66957 | 421.67 | 567 | 562 | 157.5 |
| D | 8 | 176 | 2312186 | 13633.92 | 582 | 556 | 169.5 |
| D | 7 | 96 | 123386 | 724.44 | 582 | 556 | 169.5 |
| D | 11 | 176 | 101614 | 596.03 | 582 | 556 | 169.5 |
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 |  |