Observation information
- date-obs: 2018-04-07
- time-obs: 14:12:40.880000000
- date-end: 2018-04-07
- time-end: 16:17:42.883500000
- obs_id: G08_075T01_9000002024
- exposure: 3727.54488788
- 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_9000002024_13654cztM0_level2.evt
| modeM0/AS1G08_075T01_9000002024_13654cztM0_level2_quad_clean.evt
|
| Size (bytes) | 545,247,360 | 83,131,200 |
| Size | 520.0 MB
| 79.3 MB
|
| Events in quadrant A | 3,606,350 | 492,778 |
| Events in quadrant B | 4,278,628 | 489,819 |
| Events in quadrant C | 3,700,009 | 522,245 |
| Events in quadrant D | 4,428,682 | 500,169 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15472 | 2 |
| B | 0 | 17385 | 1 |
| C | 0 | 15235 | 1 |
| D | 0 | 17799 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7352 | 162 | 2.203482% |
| B | 7352 | 427 | 5.807943% |
| C | 7352 | 122 | 1.659412% |
| D | 7352 | 171 | 2.325898% |
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 | 7503 | 7354 | 20 | 20 | 0.27% | 0.27% |  |
| B | 7503 | 7354 | 120 | 120 | 1.60% | 1.63% |  |
| C | 7503 | 7354 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7503 | 7354 | 42 | 42 | 0.56% | 0.57% |  |
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 | 12 | 96 | 118810 | 640.76 | 898 | 878 | 184.0 |
| A | 1 | 162 | 13854 | 70.5 | 898 | 878 | 184.0 |
| A | 15 | 69 | 11886 | 59.81 | 898 | 878 | 184.0 |
| B | 0 | 219 | 578713 | 3408.78 | 885 | 864 | 169.5 |
| B | 0 | 189 | 115153 | 674.2 | 885 | 864 | 169.5 |
| B | 0 | 214 | 24688 | 140.54 | 885 | 864 | 169.5 |
| C | 3 | 233 | 242123 | 1175.46 | 881 | 886 | 205.2 |
| C | 8 | 128 | 9637 | 42.64 | 881 | 886 | 205.2 |
| C | 13 | 61 | 6487 | 27.29 | 881 | 886 | 205.2 |
| D | 8 | 195 | 508188 | 2379.22 | 882 | 858 | 213.2 |
| D | 5 | 222 | 356712 | 1668.85 | 882 | 858 | 213.2 |
| D | 10 | 157 | 100178 | 465.78 | 882 | 858 | 213.2 |
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 |  |