Observation information
- date-obs: 2018-05-27
- time-obs: 05:35:22.220800000
- date-end: 2018-05-27
- time-end: 07:39:26.217500000
- obs_id: G08_075T01_9000002120
- exposure: 4189.39912411
- 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_9000002120_14389cztM0_level2.evt
| modeM0/AS1G08_075T01_9000002120_14389cztM0_level2_quad_clean.evt
|
| Size (bytes) | 466,441,920 | 92,776,320 |
| Size | 444.8 MB
| 88.5 MB
|
| Events in quadrant A | 3,093,842 | 607,072 |
| Events in quadrant B | 3,225,488 | 598,821 |
| Events in quadrant C | 3,766,279 | 583,608 |
| Events in quadrant D | 3,607,312 | 574,794 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13149 | 2 |
| B | 0 | 13531 | 1 |
| C | 0 | 15317 | 1 |
| D | 0 | 15042 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6379 | 95 | 1.489262% |
| B | 6379 | 116 | 1.818467% |
| C | 6379 | 56 | 0.877881% |
| D | 6379 | 228 | 3.574228% |
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 | 7445 | 6380 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7445 | 6380 | 7 | 7 | 0.09% | 0.11% |  |
| C | 7445 | 6380 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7445 | 6380 | 158 | 158 | 2.12% | 2.48% |  |
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 | 69 | 11041 | 64.06 | 797 | 783 | 160.1 |
| A | 4 | 2 | 8683 | 49.34 | 797 | 783 | 160.1 |
| A | 0 | 226 | 7259 | 40.44 | 797 | 783 | 160.1 |
| B | 4 | 173 | 52904 | 343.82 | 787 | 767 | 151.6 |
| B | 0 | 229 | 40068 | 259.17 | 787 | 767 | 151.6 |
| B | 0 | 189 | 37274 | 240.75 | 787 | 767 | 151.6 |
| C | 3 | 233 | 804275 | 4587.41 | 759 | 761 | 175.2 |
| C | 13 | 61 | 5446 | 26.74 | 759 | 761 | 175.2 |
| C | 3 | 232 | 3962 | 18.27 | 759 | 761 | 175.2 |
| D | 12 | 110 | 333382 | 1680.58 | 751 | 736 | 197.9 |
| D | 10 | 70 | 170831 | 859.35 | 751 | 736 | 197.9 |
| D | 2 | 120 | 92894 | 465.6 | 751 | 736 | 197.9 |
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 |  |