Observation information
- date-obs: 2025-05-18
- time-obs: 13:57:06.417700000
- date-end: 2025-05-18
- time-end: 15:58:22.400200000
- obs_id: C09_011T07_9000006470
- exposure: 503.833887517
- 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_52134cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52134cztM0_level2_quad_clean.evt
|
| Size (bytes) | 884,664,000 | 69,966,720 |
| Size | 843.7 MB
| 66.7 MB
|
| Events in quadrant A | 4,631,306 | 586,856 |
| Events in quadrant B | 4,958,961 | 598,784 |
| Events in quadrant C | 7,590,752 | 460,706 |
| Events in quadrant D | 15,093,898 | 46,020 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17848 | 1 |
| B | 0 | 18921 | 1 |
| C | 0 | 26723 | 1 |
| D | 0 | 49044 | 6 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6102 | 377 | 6.178302% |
| B | 6102 | 644 | 10.553917% |
| C | 6102 | 1602 | 26.253687% |
| D | 6101 | 5706 | 93.525652% |
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 | 7277 | 6102 | 258 | 258 | 3.55% | 4.23% |  |
| B | 7277 | 6103 | 424 | 424 | 5.83% | 6.95% |  |
| C | 7277 | 6103 | 1215 | 1215 | 16.70% | 19.91% |  |
| D | 7276 | 6101 | 5465 | 5465 | 75.11% | 89.58% |  |
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 | 6 | 162 | 447072 | 2781.32 | 643 | 627 | 160.5 |
| A | 15 | 174 | 305267 | 1897.88 | 643 | 627 | 160.5 |
| A | 7 | 160 | 246043 | 1528.92 | 643 | 627 | 160.5 |
| B | 5 | 172 | 1669094 | 12665.37 | 629 | 608 | 131.7 |
| B | 4 | 81 | 207960 | 1574.0 | 629 | 608 | 131.7 |
| B | 12 | 32 | 101265 | 764.08 | 629 | 608 | 131.7 |
| C | 15 | 224 | 4327750 | 27675.97 | 567 | 560 | 156.4 |
| C | 15 | 193 | 538606 | 3441.25 | 567 | 560 | 156.4 |
| C | 15 | 209 | 89721 | 570.26 | 567 | 560 | 156.4 |
| D | 6 | 42 | 7639358 | 99163.71 | 264 | 251 | 77.0 |
| D | 15 | 94 | 4742720 | 61562.28 | 264 | 251 | 77.0 |
| D | 12 | 3 | 660330 | 8568.53 | 264 | 251 | 77.0 |
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 |  |