Observation information
- date-obs: 2017-10-14
- time-obs: 21:37:23.420200000
- date-end: 2017-10-14
- time-end: 23:38:33.421300000
- obs_id: G08_075T01_9000001616
- exposure: 3672.47871508
- 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_9000001616_11068cztM0_level2.evt
| modeM0/AS1G08_075T01_9000001616_11068cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,207,680 | 78,422,400 |
| Size | 467.5 MB
| 74.8 MB
|
| Events in quadrant A | 3,737,935 | 492,301 |
| Events in quadrant B | 4,089,200 | 489,513 |
| Events in quadrant C | 2,797,234 | 493,124 |
| Events in quadrant D | 3,799,265 | 465,317 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15200 | 2 |
| B | 0 | 16323 | 1 |
| C | 0 | 12628 | 1 |
| D | 0 | 15562 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6225 | 55 | 0.883534% |
| B | 6225 | 254 | 4.080321% |
| C | 6225 | 18 | 0.289157% |
| D | 6225 | 223 | 3.582329% |
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 | 7270 | 6226 | 23 | 23 | 0.32% | 0.37% |  |
| B | 7270 | 6225 | 139 | 139 | 1.91% | 2.23% |  |
| C | 7270 | 6226 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7270 | 6226 | 181 | 181 | 2.49% | 2.91% |  |
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 | 15 | 174 | 639732 | 4303.61 | 727 | 710 | 148.5 |
| A | 8 | 15 | 290249 | 1949.95 | 727 | 710 | 148.5 |
| A | 11 | 29 | 8515 | 52.56 | 727 | 710 | 148.5 |
| B | 4 | 239 | 1102759 | 7976.61 | 726 | 708 | 138.2 |
| B | 0 | 214 | 60400 | 432.05 | 726 | 708 | 138.2 |
| B | 15 | 204 | 46185 | 329.16 | 726 | 708 | 138.2 |
| C | 13 | 61 | 5398 | 28.1 | 716 | 720 | 166.5 |
| C | 8 | 222 | 2211 | 8.96 | 716 | 720 | 166.5 |
| C | 10 | 69 | 2069 | 8.1 | 716 | 720 | 166.5 |
| D | 10 | 253 | 707538 | 4144.18 | 699 | 682 | 170.6 |
| D | 1 | 52 | 123883 | 722.31 | 699 | 682 | 170.6 |
| D | 11 | 129 | 113914 | 663.86 | 699 | 682 | 170.6 |
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 |  |