Observation information
- date-obs: 2022-05-19
- time-obs: 06:48:41.778700000
- date-end: 2022-05-19
- time-end: 08:56:36.774100000
- obs_id: A11_080T01_9000005146
- exposure: 2784.73998351
- 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_35898cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35898cztM0_level2_quad_clean.evt
|
| Size (bytes) | 507,839,040 | 75,761,280 |
| Size | 484.3 MB
| 72.3 MB
|
| Events in quadrant A | 3,083,355 | 495,667 |
| Events in quadrant B | 3,210,653 | 498,298 |
| Events in quadrant C | 3,055,284 | 475,680 |
| Events in quadrant D | 5,666,422 | 447,761 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 23 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 110 | 0 |
| B | 0 | 110 | 0 |
| C | 0 | 110 | 0 |
| D | 0 | 110 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12233 | 3 |
| B | 0 | 12706 | 2 |
| C | 0 | 12029 | 2 |
| D | 0 | 20587 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5378 | 41 | 0.762365% |
| B | 5378 | 54 | 1.004091% |
| C | 5378 | 72 | 1.338788% |
| D | 5378 | 431 | 8.014132% |
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 | 7380 | 5379 | 30 | 30 | 0.41% | 0.56% |  |
| B | 7380 | 5379 | 28 | 28 | 0.38% | 0.52% |  |
| C | 7380 | 5379 | 54 | 54 | 0.73% | 1.00% |  |
| D | 7380 | 5379 | 375 | 375 | 5.08% | 6.97% |  |
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 | 163776 | 1143.73 | 716 | 707 | 142.6 |
| A | 15 | 169 | 124539 | 868.53 | 716 | 707 | 142.6 |
| A | 7 | 3 | 10580 | 69.25 | 716 | 707 | 142.6 |
| B | 5 | 172 | 213572 | 1619.79 | 696 | 681 | 131.4 |
| B | 5 | 255 | 115459 | 873.29 | 696 | 681 | 131.4 |
| B | 0 | 213 | 68688 | 517.43 | 696 | 681 | 131.4 |
| C | 15 | 214 | 228308 | 1477.91 | 670 | 679 | 154.0 |
| C | 0 | 10 | 205315 | 1328.63 | 670 | 679 | 154.0 |
| C | 0 | 207 | 8125 | 48.34 | 670 | 679 | 154.0 |
| D | 12 | 227 | 1835234 | 11350.4 | 670 | 655 | 161.6 |
| D | 8 | 195 | 352354 | 2175.93 | 670 | 655 | 161.6 |
| D | 2 | 250 | 271113 | 1673.3 | 670 | 655 | 161.6 |
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 |  |