Observation information
- date-obs: 2017-11-27
- time-obs: 10:24:33.750600000
- date-end: 2017-11-27
- time-end: 11:02:58.834100000
- obs_id: G08_075T01_9000001726
- exposure: 1480.7261899
- 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_11712cztM0_level2.evt
| modeM0/AS1G08_075T01_9000001726_11712cztM0_level2_quad_clean.evt
|
| Size (bytes) | 120,438,720 | 28,503,360 |
| Size | 114.9 MB
| 27.2 MB
|
| Events in quadrant A | 983,284 | 189,240 |
| Events in quadrant B | 915,038 | 191,461 |
| Events in quadrant C | 744,105 | 187,379 |
| Events in quadrant D | 896,129 | 179,158 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3973 | 2 |
| B | 0 | 3666 | 1 |
| C | 0 | 3298 | 1 |
| D | 0 | 3658 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 34 | 0 |
| B | 0 | 34 | 0 |
| C | 0 | 34 | 0 |
| D | 0 | 34 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1560 | 83 | 5.320513% |
| B | 1560 | 82 | 5.256410% |
| C | 1560 | 47 | 3.012821% |
| D | 1560 | 85 | 5.448718% |
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 | 2306 | 1563 | 1 | 1 | 0.04% | 0.06% |  |
| B | 2306 | 1563 | 5 | 5 | 0.22% | 0.32% |  |
| C | 2306 | 1563 | 0 | 0 | 0.00% | 0.00% |  |
| D | 2306 | 1563 | 6 | 6 | 0.26% | 0.38% |  |
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 | 132983 | 3078.01 | 201 | 196 | 43.1 |
| A | 1 | 162 | 23038 | 529.48 | 201 | 196 | 43.1 |
| A | 15 | 174 | 15967 | 365.57 | 201 | 196 | 43.1 |
| B | 4 | 239 | 92074 | 2229.76 | 199 | 194 | 41.2 |
| B | 15 | 204 | 18220 | 437.46 | 199 | 194 | 41.2 |
| B | 0 | 214 | 10401 | 247.7 | 199 | 194 | 41.2 |
| C | 13 | 61 | 1371 | 25.28 | 190 | 191 | 46.7 |
| C | 3 | 202 | 444 | 5.42 | 190 | 191 | 46.7 |
| C | 8 | 222 | 429 | 5.1 | 190 | 191 | 46.7 |
| D | 1 | 52 | 77223 | 1592.29 | 192 | 186 | 48.4 |
| D | 8 | 195 | 33275 | 683.92 | 192 | 186 | 48.4 |
| D | 4 | 95 | 17372 | 355.22 | 192 | 186 | 48.4 |
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 |  |