Observation information
- date-obs: 2018-07-24
- time-obs: 11:53:47.363600000
- date-end: 2018-07-24
- time-end: 14:20:44.359200000
- obs_id: T02_073T01_9000002252
- exposure: 4438.72062184
- sourceid: Cygnus X-1
- observer: mithunnps
- ra_pnt: 299.563
- dec_pnt: 35.202
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_073T01_9000002252_15251cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002252_15251cztM0_level2_quad_clean.evt
|
| Size (bytes) | 484,663,680 | 89,614,080 |
| Size | 462.2 MB
| 85.5 MB
|
| Events in quadrant A | 3,569,097 | 564,614 |
| Events in quadrant B | 3,664,422 | 571,183 |
| Events in quadrant C | 3,628,242 | 553,031 |
| Events in quadrant D | 3,340,989 | 537,605 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15076 | 3 |
| B | 0 | 15280 | 2 |
| C | 0 | 14964 | 2 |
| D | 0 | 14684 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6997 | 123 | 1.757896% |
| B | 6997 | 172 | 2.458196% |
| C | 6997 | 108 | 1.543519% |
| D | 6997 | 103 | 1.472059% |
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 | 8818 | 6998 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8818 | 6998 | 16 | 16 | 0.18% | 0.23% |  |
| C | 8818 | 6998 | 1 | 1 | 0.01% | 0.01% |  |
| D | 8818 | 6998 | 3 | 3 | 0.03% | 0.04% |  |
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 | 189 | 181257 | 1020.68 | 879 | 861 | 176.7 |
| A | 15 | 233 | 8651 | 44.08 | 879 | 861 | 176.7 |
| A | 0 | 226 | 7851 | 39.55 | 879 | 861 | 176.7 |
| B | 3 | 64 | 72335 | 426.71 | 874 | 851 | 167.5 |
| B | 10 | 245 | 61555 | 362.36 | 874 | 851 | 167.5 |
| B | 0 | 189 | 37474 | 218.61 | 874 | 851 | 167.5 |
| C | 3 | 233 | 259570 | 1300.88 | 851 | 857 | 198.9 |
| C | 10 | 22 | 36422 | 178.83 | 851 | 857 | 198.9 |
| C | 4 | 254 | 18117 | 86.79 | 851 | 857 | 198.9 |
| D | 13 | 172 | 26811 | 125.08 | 853 | 827 | 207.7 |
| D | 2 | 234 | 24709 | 114.96 | 853 | 827 | 207.7 |
| D | 2 | 136 | 22178 | 102.78 | 853 | 827 | 207.7 |
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 |  |