Observation information
- date-obs: 2022-05-21
- time-obs: 10:38:41.676000000
- date-end: 2022-05-21
- time-end: 13:07:25.671300000
- obs_id: A11_080T01_9000005146
- exposure: 2152.50626096
- 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_35930cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35930cztM0_level2_quad_clean.evt
|
| Size (bytes) | 403,323,840 | 55,716,480 |
| Size | 384.6 MB
| 53.1 MB
|
| Events in quadrant A | 2,620,621 | 341,744 |
| Events in quadrant B | 3,270,541 | 338,468 |
| Events in quadrant C | 2,850,286 | 330,504 |
| Events in quadrant D | 3,126,871 | 318,726 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38 | 0 |
| B | 0 | 38 | 0 |
| C | 0 | 38 | 0 |
| D | 0 | 39 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 104 | 0 |
| B | 0 | 104 | 0 |
| C | 0 | 104 | 0 |
| D | 0 | 104 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10632 | 3 |
| B | 0 | 12797 | 2 |
| C | 0 | 11279 | 2 |
| D | 0 | 12364 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5096 | 5 | 0.098116% |
| B | 5096 | 238 | 4.670330% |
| C | 5096 | 76 | 1.491366% |
| D | 5096 | 85 | 1.667975% |
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 | 7159 | 5097 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7159 | 5097 | 153 | 153 | 2.14% | 3.00% |  |
| C | 7159 | 5097 | 58 | 58 | 0.81% | 1.14% |  |
| D | 7159 | 5097 | 70 | 70 | 0.98% | 1.37% |  |
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 | 165347 | 1296.64 | 631 | 620 | 127.0 |
| A | 13 | 6 | 10981 | 81.56 | 631 | 620 | 127.0 |
| A | 13 | 254 | 8862 | 64.88 | 631 | 620 | 127.0 |
| B | 5 | 172 | 599169 | 5208.74 | 611 | 598 | 114.9 |
| B | 5 | 255 | 196893 | 1708.15 | 611 | 598 | 114.9 |
| B | 0 | 213 | 29962 | 255.52 | 611 | 598 | 114.9 |
| C | 0 | 10 | 239789 | 1726.69 | 599 | 605 | 138.5 |
| C | 15 | 214 | 212944 | 1532.9 | 599 | 605 | 138.5 |
| C | 0 | 239 | 46716 | 332.88 | 599 | 605 | 138.5 |
| D | 1 | 52 | 144824 | 985.45 | 604 | 590 | 146.4 |
| D | 10 | 118 | 130261 | 885.95 | 604 | 590 | 146.4 |
| D | 8 | 195 | 125462 | 853.16 | 604 | 590 | 146.4 |
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 |  |