Observation information
- date-obs: 2017-10-24
- time-obs: 16:42:58.662300000
- date-end: 2017-10-24
- time-end: 18:48:17.663400000
- obs_id: G08_075T01_9000001636
- exposure: 4245.24847754
- sourceid: Cygnus X-1
- observer: ravibt
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_075T01_9000001636_11214cztM0_level2.evt
| modeM0/AS1G08_075T01_9000001636_11214cztM0_level2_quad_clean.evt
|
| Size (bytes) | 497,684,160 | 87,336,000 |
| Size | 474.6 MB
| 83.3 MB
|
| Events in quadrant A | 4,587,170 | 548,327 |
| Events in quadrant B | 3,331,109 | 568,789 |
| Events in quadrant C | 2,817,732 | 563,466 |
| Events in quadrant D | 3,911,488 | 527,209 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18518 | 661 |
| B | 0 | 14445 | 361 |
| C | 0 | 13113 | 385 |
| D | 0 | 16568 | 532 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 2 |
| B | 0 | 132 | 2 |
| C | 0 | 132 | 4 |
| D | 0 | 132 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6237 | 245 | 3.928171% |
| B | 6275 | 69 | 1.099602% |
| C | 6253 | 24 | 0.383816% |
| D | 6249 | 168 | 2.688430% |
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 | 7510 | 6316 | 77 | 77 | 1.03% | 1.22% |  |
| B | 7501 | 6327 | 14 | 14 | 0.19% | 0.22% |  |
| C | 7500 | 6324 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7490 | 6324 | 111 | 111 | 1.48% | 1.76% |  |
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 | 8 | 15 | 700519 | 4789.37 | 721 | 704 | 146.1 |
| A | 14 | 238 | 359878 | 2458.11 | 721 | 704 | 146.1 |
| A | 8 | 5 | 325398 | 2222.13 | 721 | 704 | 146.1 |
| B | 4 | 239 | 269246 | 1910.95 | 736 | 718 | 140.5 |
| B | 15 | 204 | 126570 | 895.61 | 736 | 718 | 140.5 |
| B | 0 | 187 | 20807 | 142.96 | 736 | 718 | 140.5 |
| C | 4 | 254 | 8270 | 45.12 | 720 | 724 | 167.2 |
| C | 13 | 61 | 5543 | 28.81 | 720 | 724 | 167.2 |
| C | 12 | 4 | 2020 | 7.75 | 720 | 724 | 167.2 |
| D | 1 | 52 | 481954 | 2831.51 | 708 | 689 | 170.0 |
| D | 12 | 157 | 157547 | 922.87 | 708 | 689 | 170.0 |
| D | 5 | 222 | 145440 | 851.64 | 708 | 689 | 170.0 |
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 |  |