Observation information
- date-obs: 2018-07-29
- time-obs: 19:19:52.399900000
- date-end: 2018-07-29
- time-end: 21:27:07.396800000
- obs_id: T02_073T01_9000002260
- exposure: 4365.73685162
- 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_15330cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002260_15330cztM0_level2_quad_clean.evt
|
| Size (bytes) | 440,637,120 | 93,591,360 |
| Size | 420.2 MB
| 89.3 MB
|
| Events in quadrant A | 3,080,381 | 600,041 |
| Events in quadrant B | 3,166,864 | 610,930 |
| Events in quadrant C | 3,367,587 | 601,008 |
| Events in quadrant D | 3,293,912 | 574,814 |
Level1 data integrity
| 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 | 13376 | 3 |
| B | 0 | 13543 | 2 |
| C | 0 | 13948 | 2 |
| D | 0 | 14246 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6409 | 38 | 0.592916% |
| B | 6409 | 58 | 0.904977% |
| C | 6409 | 79 | 1.232642% |
| D | 6409 | 84 | 1.310657% |
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 | 7540 | 6411 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7540 | 6411 | 3 | 3 | 0.04% | 0.05% |  |
| C | 7540 | 6411 | 18 | 18 | 0.24% | 0.28% |  |
| D | 7540 | 6411 | 49 | 49 | 0.65% | 0.76% |  |
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 | 2 | 79 | 28978 | 178.19 | 792 | 776 | 158.3 |
| A | 0 | 226 | 6910 | 38.76 | 792 | 776 | 158.3 |
| A | 12 | 194 | 5926 | 32.54 | 792 | 776 | 158.3 |
| B | 4 | 173 | 41360 | 269.42 | 793 | 774 | 150.6 |
| B | 0 | 205 | 18981 | 120.86 | 793 | 774 | 150.6 |
| B | 12 | 111 | 18063 | 114.77 | 793 | 774 | 150.6 |
| C | 3 | 233 | 319145 | 1761.13 | 782 | 788 | 180.8 |
| C | 13 | 61 | 5357 | 25.28 | 782 | 788 | 180.8 |
| C | 14 | 234 | 1879 | 6.04 | 782 | 788 | 180.8 |
| D | 13 | 122 | 298775 | 1600.63 | 777 | 758 | 186.2 |
| D | 10 | 70 | 32076 | 168.21 | 777 | 758 | 186.2 |
| D | 2 | 234 | 20776 | 107.52 | 777 | 758 | 186.2 |
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 |  |