Observation information
- date-obs: 2019-06-21
- time-obs: 14:36:55.716200000
- date-end: 2019-06-21
- time-end: 15:46:02.713400000
- obs_id: A05_180T01_9000002992
- exposure: 3130.98564154
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_180T01_9000002992_20172cztM0_level2.evt
| modeM0/AS1A05_180T01_9000002992_20172cztM0_level2_quad_clean.evt
|
| Size (bytes) | 276,292,800 | 68,840,640 |
| Size | 263.5 MB
| 65.7 MB
|
| Events in quadrant A | 1,990,609 | 463,087 |
| Events in quadrant B | 2,018,320 | 457,506 |
| Events in quadrant C | 2,087,194 | 436,078 |
| Events in quadrant D | 1,988,164 | 435,833 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8518 | 0 |
| B | 0 | 8494 | 0 |
| C | 0 | 8482 | 0 |
| D | 0 | 8693 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 82 | 0 |
| B | 0 | 82 | 0 |
| C | 0 | 82 | 0 |
| D | 0 | 82 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4147 | 22 | 0.530504% |
| B | 4148 | 11 | 0.265188% |
| C | 4148 | 20 | 0.482160% |
| D | 4148 | 10 | 0.241080% |
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 | 4147 | 4147 | 11 | 11 | 0.27% | 0.27% |  |
| B | 4148 | 4148 | 2 | 2 | 0.05% | 0.05% |  |
| C | 4148 | 4148 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4148 | 4148 | 11 | 11 | 0.27% | 0.27% |  |
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 | 14 | 238 | 65310 | 639.73 | 497 | 490 | 101.3 |
| A | 10 | 253 | 5206 | 46.54 | 497 | 490 | 101.3 |
| A | 0 | 226 | 4259 | 37.2 | 497 | 490 | 101.3 |
| B | 0 | 198 | 44326 | 462.87 | 494 | 481 | 94.7 |
| B | 0 | 183 | 19525 | 201.05 | 494 | 481 | 94.7 |
| B | 0 | 197 | 13190 | 134.17 | 494 | 481 | 94.7 |
| C | 3 | 233 | 156503 | 1389.12 | 476 | 482 | 112.3 |
| C | 14 | 238 | 74852 | 662.15 | 476 | 482 | 112.3 |
| C | 13 | 61 | 3273 | 24.85 | 476 | 482 | 112.3 |
| D | 1 | 52 | 109965 | 921.78 | 484 | 471 | 118.8 |
| D | 2 | 234 | 20290 | 166.85 | 484 | 471 | 118.8 |
| D | 7 | 96 | 19337 | 158.82 | 484 | 471 | 118.8 |
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 |  |