Observation information
- date-obs: 2025-05-09
- time-obs: 06:05:19.281800000
- date-end: 2025-05-09
- time-end: 10:49:14.244000000
- obs_id: C09_011T06_9000006468
- exposure: 11125.4871721
- 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_9000006468_51997cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51997cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,831,340,160 | 211,029,120 |
| Size | 1.7 GB
| 201.3 MB
|
| Events in quadrant A | 12,715,245 | 1,442,764 |
| Events in quadrant B | 11,073,505 | 1,599,272 |
| Events in quadrant C | 15,335,701 | 1,326,932 |
| Events in quadrant D | 27,374,262 | 862,517 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 49471 | 4 |
| B | 0 | 44551 | 2 |
| C | 0 | 57201 | 2 |
| D | 0 | 93021 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 340 | 0 |
| B | 0 | 340 | 0 |
| C | 0 | 340 | 0 |
| D | 0 | 340 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 16764 | 972 | 5.798139% |
| B | 16764 | 726 | 4.330709% |
| C | 16764 | 1859 | 11.089239% |
| D | 16765 | 6327 | 37.739338% |
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 | 17034 | 16765 | 747 | 747 | 4.39% | 4.46% |  |
| B | 17034 | 16765 | 440 | 440 | 2.58% | 2.62% |  |
| C | 17034 | 16766 | 1716 | 1716 | 10.07% | 10.23% |  |
| D | 17035 | 16765 | 6217 | 6217 | 36.50% | 37.08% |  |
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 | 7 | 64 | 2312530 | 5537.56 | 1707 | 1668 | 417.3 |
| A | 4 | 95 | 1869382 | 4475.64 | 1707 | 1668 | 417.3 |
| A | 3 | 14 | 235655 | 560.71 | 1707 | 1668 | 417.3 |
| B | 4 | 206 | 1453442 | 4000.61 | 1711 | 1651 | 362.9 |
| B | 0 | 172 | 345042 | 946.26 | 1711 | 1651 | 362.9 |
| B | 10 | 128 | 266729 | 730.46 | 1711 | 1651 | 362.9 |
| C | 15 | 224 | 4819002 | 10690.82 | 1625 | 1612 | 450.6 |
| C | 13 | 3 | 1204887 | 2670.33 | 1625 | 1612 | 450.6 |
| C | 4 | 5 | 739760 | 1638.11 | 1625 | 1612 | 450.6 |
| D | 6 | 42 | 7766510 | 19331.44 | 1420 | 1357 | 401.7 |
| D | 12 | 17 | 5851995 | 14565.23 | 1420 | 1357 | 401.7 |
| D | 12 | 16 | 2172548 | 5405.2 | 1420 | 1357 | 401.7 |
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 |  |