Observation information
- date-obs: 2018-07-29
- time-obs: 15:59:00.405900000
- date-end: 2018-07-29
- time-end: 17:56:58.401700000
- obs_id: T02_073T01_9000002260
- exposure: 4701.73379764
- 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_9000002260_15328cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002260_15328cztM0_level2_quad_clean.evt
|
| Size (bytes) | 463,849,920 | 106,511,040 |
| Size | 442.4 MB
| 101.6 MB
|
| Events in quadrant A | 2,900,148 | 714,840 |
| Events in quadrant B | 3,111,141 | 728,751 |
| Events in quadrant C | 3,005,474 | 722,067 |
| Events in quadrant D | 4,640,158 | 657,638 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12270 | 2 |
| B | 0 | 12882 | 1 |
| C | 0 | 12482 | 1 |
| D | 0 | 17445 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5753 | 59 | 1.025552% |
| B | 5753 | 82 | 1.425343% |
| C | 5753 | 57 | 0.990787% |
| D | 5753 | 595 | 10.342430% |
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 | 7079 | 5755 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7079 | 5755 | 7 | 7 | 0.10% | 0.12% |  |
| C | 7079 | 5755 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7079 | 5755 | 398 | 398 | 5.62% | 6.92% |  |
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 | 0 | 226 | 6660 | 39.66 | 753 | 739 | 149.3 |
| A | 12 | 194 | 5440 | 31.49 | 753 | 739 | 149.3 |
| A | 3 | 137 | 4927 | 28.05 | 753 | 739 | 149.3 |
| B | 4 | 173 | 144912 | 1023.78 | 752 | 734 | 140.8 |
| B | 4 | 48 | 17097 | 116.19 | 752 | 734 | 140.8 |
| B | 12 | 111 | 16290 | 110.46 | 752 | 734 | 140.8 |
| C | 3 | 233 | 91636 | 531.29 | 747 | 753 | 171.1 |
| C | 13 | 61 | 5258 | 26.34 | 747 | 753 | 171.1 |
| C | 8 | 222 | 1790 | 6.06 | 747 | 753 | 171.1 |
| D | 13 | 122 | 1288405 | 7413.97 | 722 | 705 | 173.7 |
| D | 2 | 33 | 338028 | 1942.15 | 722 | 705 | 173.7 |
| D | 1 | 52 | 167647 | 961.17 | 722 | 705 | 173.7 |
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 |  |