Observation information
- date-obs: 2021-08-19
- time-obs: 04:02:46.916200000
- date-end: 2021-08-19
- time-end: 07:44:01.917200000
- obs_id: A10_109T01_9000004646
- exposure: 5643.84239089
- 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_31855cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004646_31855cztM0_level2_quad_clean.evt
|
| Size (bytes) | 898,807,680 | 133,856,640 |
| Size | 857.2 MB
| 127.7 MB
|
| Events in quadrant A | 5,646,113 | 840,208 |
| Events in quadrant B | 8,685,170 | 835,138 |
| Events in quadrant C | 6,359,793 | 798,361 |
| Events in quadrant D | 5,756,784 | 789,029 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 232 | 0 |
| B | 0 | 232 | 0 |
| C | 0 | 232 | 0 |
| D | 0 | 232 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23569 | 2 |
| B | 0 | 34618 | 2 |
| C | 0 | 25656 | 4 |
| D | 0 | 24175 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11435 | 94 | 0.822038% |
| B | 11435 | 206 | 1.801487% |
| C | 11435 | 308 | 2.693485% |
| D | 11436 | 85 | 0.743267% |
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 | 13275 | 11437 | 0 | 0 | 0.00% | 0.00% |  |
| B | 13275 | 11437 | 11 | 11 | 0.08% | 0.10% |  |
| C | 13276 | 11438 | 83 | 83 | 0.63% | 0.73% |  |
| D | 13276 | 11438 | 18 | 18 | 0.14% | 0.16% |  |
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 | 19320 | 61.52 | 1461 | 1435 | 290.7 |
| A | 3 | 137 | 14939 | 46.45 | 1461 | 1435 | 290.7 |
| A | 0 | 226 | 12243 | 37.18 | 1461 | 1435 | 290.7 |
| B | 6 | 159 | 2964114 | 10815.13 | 1433 | 1397 | 273.9 |
| B | 10 | 247 | 57487 | 204.75 | 1433 | 1397 | 273.9 |
| B | 12 | 111 | 34301 | 120.11 | 1433 | 1397 | 273.9 |
| C | 0 | 10 | 617334 | 1913.02 | 1378 | 1387 | 322.0 |
| C | 14 | 238 | 229966 | 709.93 | 1378 | 1387 | 322.0 |
| C | 3 | 233 | 92440 | 282.79 | 1378 | 1387 | 322.0 |
| D | 8 | 195 | 239709 | 726.67 | 1405 | 1376 | 328.0 |
| D | 12 | 218 | 92205 | 276.94 | 1405 | 1376 | 328.0 |
| D | 2 | 234 | 48895 | 144.88 | 1405 | 1376 | 328.0 |
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 |  |