Observation information
- date-obs: 2017-09-17
- time-obs: 14:48:27.545100000
- date-end: 2017-09-17
- time-end: 16:44:22.543200000
- obs_id: A03_097T01_9000001540
- exposure: 4103.58093718
- 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_10665cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10665cztM0_level2_quad_clean.evt
|
| Size (bytes) | 489,208,320 | 86,463,360 |
| Size | 466.5 MB
| 82.5 MB
|
| Events in quadrant A | 2,739,024 | 570,414 |
| Events in quadrant B | 3,940,543 | 560,572 |
| Events in quadrant C | 2,964,265 | 563,577 |
| Events in quadrant D | 4,783,231 | 522,997 |
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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12063 | 2 |
| B | 0 | 15494 | 1 |
| C | 0 | 12678 | 1 |
| D | 0 | 18118 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5740 | 64 | 1.114983% |
| B | 5740 | 290 | 5.052265% |
| C | 5740 | 75 | 1.306620% |
| D | 5740 | 273 | 4.756098% |
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 | 6955 | 5742 | 4 | 4 | 0.06% | 0.07% |  |
| B | 6955 | 5742 | 181 | 181 | 2.60% | 3.15% |  |
| C | 6955 | 5742 | 31 | 31 | 0.45% | 0.54% |  |
| D | 6955 | 5741 | 212 | 212 | 3.05% | 3.69% |  |
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 | 43837 | 308.08 | 692 | 677 | 140.1 |
| A | 1 | 162 | 13288 | 90.02 | 692 | 677 | 140.1 |
| A | 14 | 254 | 8970 | 59.2 | 692 | 677 | 140.1 |
| B | 4 | 239 | 1172072 | 9193.41 | 682 | 666 | 127.4 |
| B | 11 | 51 | 34713 | 267.2 | 682 | 666 | 127.4 |
| B | 0 | 214 | 33393 | 256.84 | 682 | 666 | 127.4 |
| C | 4 | 254 | 264618 | 1698.05 | 675 | 679 | 155.4 |
| C | 4 | 175 | 43211 | 273.63 | 675 | 679 | 155.4 |
| C | 14 | 234 | 10607 | 63.87 | 675 | 679 | 155.4 |
| D | 8 | 195 | 469507 | 2933.8 | 661 | 644 | 159.8 |
| D | 10 | 199 | 459841 | 2873.32 | 661 | 644 | 159.8 |
| D | 2 | 16 | 373992 | 2336.14 | 661 | 644 | 159.8 |
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 |  |