Observation information
- date-obs: 2017-11-27
- time-obs: 20:52:20.843500000
- date-end: 2017-11-27
- time-end: 23:16:41.840100000
- obs_id: G08_075T01_9000001726
- exposure: 3282.62788232
- 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_9000001726_11719cztM0_level2.evt
| modeM0/AS1G08_075T01_9000001726_11719cztM0_level2_quad_clean.evt
|
| Size (bytes) | 553,668,480 | 71,055,360 |
| Size | 528.0 MB
| 67.8 MB
|
| Events in quadrant A | 4,814,141 | 422,436 |
| Events in quadrant B | 3,837,970 | 429,989 |
| Events in quadrant C | 3,116,671 | 427,148 |
| Events in quadrant D | 4,541,023 | 400,745 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18824 | 3 |
| B | 0 | 15801 | 2 |
| C | 0 | 13846 | 2 |
| D | 0 | 18101 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6756 | 183 | 2.708703% |
| B | 6756 | 176 | 2.605092% |
| C | 6756 | 66 | 0.976909% |
| D | 6756 | 399 | 5.905861% |
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 | 8662 | 6759 | 64 | 64 | 0.74% | 0.95% |  |
| B | 8662 | 6759 | 54 | 54 | 0.62% | 0.80% |  |
| C | 8662 | 6759 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8662 | 6759 | 297 | 297 | 3.43% | 4.39% |  |
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 | 1366760 | 8336.5 | 805 | 789 | 163.9 |
| A | 1 | 162 | 122486 | 742.71 | 805 | 789 | 163.9 |
| A | 1 | 178 | 64918 | 391.38 | 805 | 789 | 163.9 |
| B | 4 | 239 | 293232 | 1871.45 | 813 | 794 | 156.3 |
| B | 3 | 64 | 142621 | 907.62 | 813 | 794 | 156.3 |
| B | 10 | 245 | 80195 | 508.12 | 813 | 794 | 156.3 |
| C | 13 | 61 | 5799 | 26.85 | 798 | 803 | 186.1 |
| C | 12 | 4 | 3451 | 14.23 | 798 | 803 | 186.1 |
| C | 14 | 234 | 1925 | 6.03 | 798 | 803 | 186.1 |
| D | 1 | 52 | 1108199 | 5913.15 | 777 | 755 | 187.3 |
| D | 7 | 80 | 182493 | 970.38 | 777 | 755 | 187.3 |
| D | 8 | 195 | 180036 | 957.26 | 777 | 755 | 187.3 |
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 |  |