Observation information
- date-obs: 2015-11-15
- time-obs: 20-54-47.000007585
- date-end: 2015-11-15
- time-end: 23-05-21.000007482
- obs_id: P01_147T01_9000000106
- exposure: 3435.6448228
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5635
- dec_pnt: 35.20176
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_147T01_9000000106_00723cztM0_level2.evt
| modeM0/AS1P01_147T01_9000000106_00723cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,033,963,200 | 67,037,760 |
| Size | 986.1 MB
| 63.9 MB
|
| Events in quadrant A | 7,600,134 | 398,778 |
| Events in quadrant B | 7,941,903 | 406,658 |
| Events in quadrant C | 7,464,413 | 394,694 |
| Events in quadrant D | 7,874,578 | 374,605 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27216 | 2 |
| B | 0 | 28229 | 6 |
| C | 0 | 26780 | 2 |
| D | 0 | 28037 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6525 | 14 | 0.214559% |
| B | 6524 | 4 | 0.061312% |
| C | 6524 | 4 | 0.061312% |
| D | 6524 | 90 | 1.379522% |
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 | 7835 | 6526 | 158 | 158 | 2.02% | 2.42% |  |
| B | 7834 | 6525 | 142 | 142 | 1.81% | 2.18% |  |
| C | 7834 | 6525 | 93 | 93 | 1.19% | 1.43% |  |
| D | 7834 | 6525 | 370 | 370 | 4.72% | 5.67% |  |
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 | 10 | 230 | 69565 | 145.48 | 1949 | 1965 | 464.7 |
| A | 15 | 17 | 26326 | 52.43 | 1949 | 1965 | 464.7 |
| A | 15 | 171 | 12422 | 22.5 | 1949 | 1965 | 464.7 |
| B | 5 | 191 | 28709 | 55.67 | 2065 | 2081 | 478.3 |
| B | 0 | 220 | 23610 | 45.01 | 2065 | 2081 | 478.3 |
| B | 4 | 232 | 15461 | 27.97 | 2065 | 2081 | 478.3 |
| C | 15 | 241 | 42337 | 77.29 | 1883 | 1950 | 522.6 |
| C | 3 | 111 | 24852 | 43.83 | 1883 | 1950 | 522.6 |
| C | 9 | 52 | 15478 | 25.89 | 1883 | 1950 | 522.6 |
| D | 6 | 226 | 740224 | 1345.3 | 1789 | 1856 | 548.8 |
| D | 1 | 4 | 104001 | 186.11 | 1789 | 1856 | 548.8 |
| D | 14 | 52 | 84430 | 150.45 | 1789 | 1856 | 548.8 |
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 |  |