Observation information
- date-obs: 2018-07-24
- time-obs: 13:43:12.360200000
- date-end: 2018-07-24
- time-end: 16:03:48.357200000
- obs_id: T02_073T01_9000002252
- exposure: 4525.09132868
- 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_9000002252_15253cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002252_15253cztM0_level2_quad_clean.evt
|
| Size (bytes) | 474,606,720 | 94,769,280 |
| Size | 452.6 MB
| 90.4 MB
|
| Events in quadrant A | 3,331,133 | 613,389 |
| Events in quadrant B | 3,433,438 | 621,628 |
| Events in quadrant C | 3,674,967 | 603,991 |
| Events in quadrant D | 3,497,088 | 582,192 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 20 | 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 | 14115 | 3 |
| B | 0 | 14537 | 2 |
| C | 0 | 15028 | 2 |
| D | 0 | 14720 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6430 | 74 | 1.150855% |
| B | 6430 | 100 | 1.555210% |
| C | 6430 | 112 | 1.741835% |
| D | 6430 | 131 | 2.037325% |
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 | 7566 | 6431 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7566 | 6431 | 14 | 14 | 0.19% | 0.22% |  |
| C | 7566 | 6431 | 36 | 36 | 0.48% | 0.56% |  |
| D | 7566 | 6432 | 64 | 64 | 0.85% | 1.00% |  |
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 | 12 | 189 | 155703 | 936.77 | 825 | 808 | 165.3 |
| A | 0 | 226 | 7332 | 39.46 | 825 | 808 | 165.3 |
| A | 15 | 233 | 6525 | 34.58 | 825 | 808 | 165.3 |
| B | 10 | 16 | 88235 | 563.14 | 822 | 801 | 155.3 |
| B | 3 | 64 | 33298 | 209.3 | 822 | 801 | 155.3 |
| B | 10 | 245 | 29171 | 182.72 | 822 | 801 | 155.3 |
| C | 3 | 233 | 453632 | 2448.56 | 804 | 810 | 184.9 |
| C | 14 | 234 | 70504 | 376.86 | 804 | 810 | 184.9 |
| C | 4 | 254 | 17614 | 90.86 | 804 | 810 | 184.9 |
| D | 10 | 70 | 336714 | 1726.81 | 804 | 780 | 194.5 |
| D | 2 | 16 | 93345 | 475.81 | 804 | 780 | 194.5 |
| D | 2 | 234 | 23621 | 117.41 | 804 | 780 | 194.5 |
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 |  |