Observation information
- date-obs: 2025-05-19
- time-obs: 21:04:03.165600000
- date-end: 2025-05-19
- time-end: 23:13:12.150000000
- obs_id: C09_011T07_9000006470
- exposure: 2385.70225376
- 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_52153cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52153cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,202,446,080 | 85,919,040 |
| Size | 1.1 GB
| 81.9 MB
|
| Events in quadrant A | 7,358,124 | 686,321 |
| Events in quadrant B | 8,813,095 | 620,923 |
| Events in quadrant C | 10,081,990 | 554,872 |
| Events in quadrant D | 17,661,089 | 199,776 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27443 | 12 |
| B | 0 | 31580 | 3 |
| C | 0 | 35382 | 6 |
| D | 0 | 57801 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7745 | 434 | 5.603615% |
| B | 7748 | 1900 | 24.522457% |
| C | 7747 | 1947 | 25.132309% |
| D | 7750 | 5652 | 72.929032% |
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 | 7749 | 7748 | 438 | 438 | 5.65% | 5.65% |  |
| B | 7750 | 7749 | 1469 | 1469 | 18.95% | 18.96% |  |
| C | 7749 | 7748 | 1698 | 1698 | 21.91% | 21.92% |  |
| D | 7749 | 7749 | 5897 | 5897 | 76.10% | 76.10% |  |
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 | 4 | 3 | 1451532 | 7395.88 | 786 | 767 | 196.2 |
| A | 3 | 95 | 581840 | 2962.26 | 786 | 767 | 196.2 |
| A | 15 | 239 | 461657 | 2349.58 | 786 | 767 | 196.2 |
| B | 12 | 32 | 3718092 | 24380.21 | 719 | 694 | 152.5 |
| B | 10 | 254 | 1141355 | 7480.92 | 719 | 694 | 152.5 |
| B | 4 | 206 | 229808 | 1502.62 | 719 | 694 | 152.5 |
| C | 15 | 224 | 3847057 | 19387.32 | 713 | 709 | 198.4 |
| C | 15 | 192 | 1295351 | 6525.58 | 713 | 709 | 198.4 |
| C | 4 | 5 | 658641 | 3316.27 | 713 | 709 | 198.4 |
| D | 6 | 42 | 13232740 | 92700.22 | 496 | 473 | 142.7 |
| D | 15 | 94 | 690653 | 4835.14 | 496 | 473 | 142.7 |
| D | 11 | 176 | 372501 | 2606.29 | 496 | 473 | 142.7 |
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 |  |