Observation information
- date-obs: 2021-08-19
- time-obs: 03:44:07.916000000
- date-end: 2021-08-19
- time-end: 05:56:21.917000000
- obs_id: A10_109T01_9000004646
- exposure: 3508.71059436
- sourceid: Cygnus X-1
- observer: tanmoy
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_109T01_9000004646_31854cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004646_31854cztM0_level2_quad_clean.evt
|
| Size (bytes) | 527,688,000 | 83,067,840 |
| Size | 503.2 MB
| 79.2 MB
|
| Events in quadrant A | 3,319,233 | 525,454 |
| Events in quadrant B | 5,119,751 | 523,563 |
| Events in quadrant C | 3,627,480 | 496,152 |
| Events in quadrant D | 3,453,548 | 496,096 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13950 | 2 |
| B | 0 | 20587 | 4 |
| C | 0 | 14774 | 2 |
| D | 0 | 14541 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6803 | 62 | 0.911363% |
| B | 6802 | 135 | 1.984710% |
| C | 6802 | 191 | 2.807998% |
| D | 6802 | 56 | 0.823287% |
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 | 7628 | 6804 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7627 | 6803 | 10 | 10 | 0.13% | 0.15% |  |
| C | 7627 | 6803 | 33 | 33 | 0.43% | 0.49% |  |
| D | 7627 | 6803 | 12 | 12 | 0.16% | 0.18% |  |
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 | 13 | 254 | 11972 | 64.37 | 858 | 841 | 172.9 |
| A | 3 | 137 | 8983 | 47.08 | 858 | 841 | 172.9 |
| A | 13 | 6 | 7177 | 36.64 | 858 | 841 | 172.9 |
| B | 6 | 159 | 1743442 | 10629.31 | 846 | 825 | 163.9 |
| B | 10 | 247 | 42664 | 255.2 | 846 | 825 | 163.9 |
| B | 12 | 111 | 20401 | 119.41 | 846 | 825 | 163.9 |
| C | 0 | 10 | 241237 | 1250.51 | 814 | 819 | 192.3 |
| C | 14 | 238 | 135744 | 701.8 | 814 | 819 | 192.3 |
| C | 3 | 233 | 53770 | 275.42 | 814 | 819 | 192.3 |
| D | 8 | 195 | 162701 | 812.18 | 828 | 809 | 199.3 |
| D | 12 | 218 | 47986 | 236.68 | 828 | 809 | 199.3 |
| D | 13 | 174 | 47115 | 232.31 | 828 | 809 | 199.3 |
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 |  |