Observation information
- date-obs: 2025-07-09
- time-obs: 13:43:40.943400000
- date-end: 2025-07-09
- time-end: 15:37:59.929100000
- obs_id: C09_011T06_9000006484
- exposure: 205.134180725
- 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_9000006484_52906cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006484_52906cztM0_level2_quad_clean.evt
|
| Size (bytes) | 764,455,680 | 66,686,400 |
| Size | 729.0 MB
| 63.6 MB
|
| Events in quadrant A | 14,585,622 | 19,993 |
| Events in quadrant B | 4,239,931 | 574,113 |
| Events in quadrant C | 3,669,916 | 519,081 |
| Events in quadrant D | 5,339,189 | 489,762 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 47259 | 1 |
| B | 0 | 16764 | 6 |
| C | 0 | 15207 | 1 |
| D | 0 | 19987 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5960 | 5824 | 97.718121% |
| B | 5959 | 434 | 7.283101% |
| C | 5959 | 295 | 4.950495% |
| D | 5959 | 551 | 9.246518% |
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 | 6860 | 5961 | 5474 | 5474 | 79.80% | 91.83% |  |
| B | 6859 | 5960 | 303 | 303 | 4.42% | 5.08% |  |
| C | 6859 | 5960 | 157 | 157 | 2.29% | 2.63% |  |
| D | 6859 | 5960 | 501 | 501 | 7.30% | 8.41% |  |
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 | 13170595 | 221467.76 | 232 | 227 | 59.5 |
| A | 12 | 17 | 212875 | 3575.81 | 232 | 227 | 59.5 |
| A | 3 | 62 | 108164 | 1815.03 | 232 | 227 | 59.5 |
| B | 8 | 128 | 811253 | 6310.93 | 605 | 584 | 128.5 |
| B | 4 | 158 | 520786 | 4049.69 | 605 | 584 | 128.5 |
| B | 12 | 32 | 69404 | 535.75 | 605 | 584 | 128.5 |
| C | 2 | 12 | 438549 | 2636.17 | 602 | 594 | 166.1 |
| C | 7 | 80 | 302773 | 1818.9 | 602 | 594 | 166.1 |
| C | 15 | 224 | 125368 | 751.05 | 602 | 594 | 166.1 |
| D | 8 | 176 | 1194543 | 6949.01 | 600 | 573 | 171.8 |
| D | 15 | 125 | 676453 | 3933.68 | 600 | 573 | 171.8 |
| D | 2 | 249 | 197366 | 1145.35 | 600 | 573 | 171.8 |
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 |  |