Observation information
- date-obs: 2025-06-24
- time-obs: 12:44:09.883500000
- date-end: 2025-06-24
- time-end: 14:43:03.865900000
- obs_id: C09_011T07_9000006480
- exposure: 3515.24822211
- 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_52683cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52683cztM0_level2_quad_clean.evt
|
| Size (bytes) | 899,835,840 | 73,451,520 |
| Size | 858.2 MB
| 70.0 MB
|
| Events in quadrant A | 4,042,660 | 577,103 |
| Events in quadrant B | 8,851,140 | 491,616 |
| Events in quadrant C | 11,360,631 | 317,719 |
| Events in quadrant D | 8,580,687 | 407,651 |
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 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16106 | 1 |
| B | 0 | 30624 | 1 |
| C | 0 | 38072 | 1 |
| D | 0 | 29750 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6149 | 153 | 2.488209% |
| B | 6150 | 1687 | 27.430894% |
| C | 6150 | 2957 | 48.081301% |
| D | 6149 | 1619 | 26.329484% |
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 | 7134 | 6150 | 101 | 101 | 1.42% | 1.64% |  |
| B | 7135 | 6151 | 1396 | 1396 | 19.57% | 22.70% |  |
| C | 7135 | 6151 | 2957 | 2957 | 41.44% | 48.07% |  |
| D | 7134 | 6150 | 1585 | 1585 | 22.22% | 25.77% |  |
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 | 3 | 14 | 813366 | 5081.25 | 637 | 620 | 160.0 |
| A | 3 | 62 | 130457 | 811.73 | 637 | 620 | 160.0 |
| A | 3 | 46 | 116255 | 722.94 | 637 | 620 | 160.0 |
| B | 10 | 128 | 4126486 | 33471.83 | 583 | 563 | 123.3 |
| B | 12 | 32 | 967678 | 7845.79 | 583 | 563 | 123.3 |
| B | 4 | 171 | 446586 | 3618.39 | 583 | 563 | 123.3 |
| C | 15 | 248 | 5180074 | 37794.16 | 492 | 487 | 137.0 |
| C | 14 | 96 | 1591485 | 11609.12 | 492 | 487 | 137.0 |
| C | 9 | 38 | 915149 | 6674.06 | 492 | 487 | 137.0 |
| D | 8 | 176 | 2359673 | 14755.94 | 554 | 527 | 159.9 |
| D | 1 | 7 | 1728566 | 10808.51 | 554 | 527 | 159.9 |
| D | 12 | 33 | 1176036 | 7352.55 | 554 | 527 | 159.9 |
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 |  |