Observation information
- date-obs: 2017-09-19
- time-obs: 20:28:14.533400000
- date-end: 2017-09-19
- time-end: 22:40:45.533000000
- obs_id: A03_097T01_9000001540
- exposure: 4156.48106239
- sourceid: Cygnus X-1
- observer: aarthy
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_097T01_9000001540_10698cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10698cztM0_level2_quad_clean.evt
|
| Size (bytes) | 509,656,320 | 86,423,040 |
| Size | 486.0 MB
| 82.4 MB
|
| Events in quadrant A | 3,060,529 | 552,493 |
| Events in quadrant B | 4,618,040 | 545,727 |
| Events in quadrant C | 2,894,781 | 556,712 |
| Events in quadrant D | 4,430,559 | 518,527 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13347 | 3 |
| B | 0 | 17985 | 2 |
| C | 0 | 13048 | 2 |
| D | 0 | 17548 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6359 | 36 | 0.566127% |
| B | 6359 | 335 | 5.268124% |
| C | 6359 | 14 | 0.220160% |
| D | 6359 | 92 | 1.446768% |
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 | 7474 | 6360 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7474 | 6360 | 187 | 187 | 2.50% | 2.94% |  |
| C | 7474 | 6360 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7474 | 6360 | 101 | 101 | 1.35% | 1.59% |  |
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 | 4 | 2 | 53537 | 346.73 | 747 | 731 | 152.3 |
| A | 15 | 239 | 49191 | 318.19 | 747 | 731 | 152.3 |
| A | 1 | 162 | 20246 | 128.14 | 747 | 731 | 152.3 |
| B | 4 | 239 | 1385287 | 9804.23 | 747 | 729 | 141.2 |
| B | 0 | 219 | 157417 | 1109.53 | 747 | 729 | 141.2 |
| B | 0 | 214 | 44513 | 310.04 | 747 | 729 | 141.2 |
| C | 14 | 234 | 10659 | 58.0 | 738 | 744 | 171.0 |
| C | 14 | 238 | 5523 | 27.95 | 738 | 744 | 171.0 |
| C | 13 | 61 | 5417 | 27.33 | 738 | 744 | 171.0 |
| D | 2 | 16 | 637486 | 3653.28 | 724 | 704 | 174.3 |
| D | 10 | 199 | 469947 | 2692.09 | 724 | 704 | 174.3 |
| D | 2 | 14 | 182912 | 1045.35 | 724 | 704 | 174.3 |
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 |  |