Observation information
- date-obs: 2025-07-04
- time-obs: 03:16:52.996500000
- date-end: 2025-07-04
- time-end: 05:29:32.976600000
- obs_id: C09_011T07_9000006480
- exposure: 3.21201121807
- 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_52825cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52825cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,178,179,200 | 68,063,040 |
| Size | 1.1 GB
| 64.9 MB
|
| Events in quadrant A | 18,193,210 | 272 |
| Events in quadrant B | 13,294,484 | 355,432 |
| Events in quadrant C | 4,222,670 | 639,925 |
| Events in quadrant D | 7,335,025 | 553,860 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 58809 | 2 |
| B | 0 | 44544 | 2 |
| C | 0 | 17711 | 2 |
| D | 0 | 26862 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7341 | 7339 | 99.972756% |
| B | 7341 | 4140 | 56.395586% |
| C | 7341 | 132 | 1.798120% |
| D | 7340 | 977 | 13.310627% |
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 | 7940 | 7341 | 7223 | 7223 | 90.97% | 98.39% |  |
| B | 7940 | 7341 | 3591 | 3591 | 45.23% | 48.92% |  |
| C | 7940 | 7341 | 98 | 98 | 1.23% | 1.33% |  |
| D | 7939 | 7340 | 962 | 962 | 12.12% | 13.11% |  |
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 | 17176794 | 401045.61 | 163 | 159 | 42.8 |
| A | 3 | 62 | 163659 | 3817.45 | 163 | 159 | 42.8 |
| A | 0 | 8 | 62825 | 1463.15 | 163 | 159 | 42.8 |
| B | 8 | 3 | 10108788 | 80570.78 | 592 | 572 | 125.5 |
| B | 12 | 32 | 320520 | 2550.25 | 592 | 572 | 125.5 |
| B | 4 | 81 | 164245 | 1304.61 | 592 | 572 | 125.5 |
| C | 10 | 22 | 498730 | 2445.5 | 732 | 726 | 203.6 |
| C | 2 | 12 | 360038 | 1764.44 | 732 | 726 | 203.6 |
| C | 15 | 224 | 129475 | 632.24 | 732 | 726 | 203.6 |
| D | 8 | 176 | 2307319 | 11647.12 | 695 | 665 | 198.0 |
| D | 10 | 172 | 1012858 | 5110.92 | 695 | 665 | 198.0 |
| D | 2 | 249 | 253638 | 1277.35 | 695 | 665 | 198.0 |
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 |  |