Observation information
- date-obs: 2022-05-21
- time-obs: 18:06:07.664400000
- date-end: 2022-05-21
- time-end: 23:36:16.655200000
- obs_id: A11_080T01_9000005146
- exposure: 11554.4931057
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_080T01_9000005146_35936cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35936cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,245,896,640 | 249,756,480 |
| Size | 1.2 GB
| 238.2 MB
|
| Events in quadrant A | 7,664,297 | 1,676,248 |
| Events in quadrant B | 11,192,306 | 1,597,671 |
| Events in quadrant C | 8,118,289 | 1,647,045 |
| Events in quadrant D | 9,701,478 | 1,565,298 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 41 | 0 |
| B | 0 | 41 | 0 |
| C | 0 | 41 | 0 |
| D | 0 | 41 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 320 | 0 |
| B | 0 | 320 | 0 |
| C | 0 | 320 | 0 |
| D | 0 | 320 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32571 | 5 |
| B | 0 | 43443 | 4 |
| C | 0 | 33391 | 4 |
| D | 0 | 39308 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 15628 | 46 | 0.294343% |
| B | 15628 | 1362 | 8.715127% |
| C | 15628 | 176 | 1.126184% |
| D | 15629 | 252 | 1.612387% |
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 | 19808 | 15631 | 33 | 33 | 0.17% | 0.21% |  |
| B | 19808 | 15631 | 930 | 930 | 4.70% | 5.95% |  |
| C | 19808 | 15631 | 125 | 125 | 0.63% | 0.80% |  |
| D | 19809 | 15632 | 177 | 177 | 0.89% | 1.13% |  |
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 | 10 | 83 | 405791 | 1089.26 | 1831 | 1804 | 370.9 |
| A | 15 | 169 | 117223 | 311.2 | 1831 | 1804 | 370.9 |
| A | 9 | 143 | 35045 | 89.63 | 1831 | 1804 | 370.9 |
| B | 5 | 172 | 3935290 | 11768.0 | 1745 | 1705 | 334.3 |
| B | 5 | 255 | 175640 | 520.36 | 1745 | 1705 | 334.3 |
| B | 4 | 232 | 53854 | 156.01 | 1745 | 1705 | 334.3 |
| C | 15 | 214 | 641832 | 1556.39 | 1766 | 1786 | 411.2 |
| C | 0 | 10 | 508585 | 1232.38 | 1766 | 1786 | 411.2 |
| C | 0 | 207 | 90847 | 216.57 | 1766 | 1786 | 411.2 |
| D | 8 | 195 | 1003687 | 2322.29 | 1761 | 1718 | 431.5 |
| D | 1 | 52 | 604950 | 1398.13 | 1761 | 1718 | 431.5 |
| D | 10 | 118 | 492448 | 1137.38 | 1761 | 1718 | 431.5 |
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 |  |