Observation information
- date-obs: 2019-06-20
- time-obs: 08:54:49.750700000
- date-end: 2019-06-20
- time-end: 11:05:37.748300000
- obs_id: A05_180T01_9000002992
- exposure: 2852.21915807
- 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_20149cztM0_level2.evt
| modeM0/AS1A05_180T01_9000002992_20149cztM0_level2_quad_clean.evt
|
| Size (bytes) | 527,944,320 | 79,341,120 |
| Size | 503.5 MB
| 75.7 MB
|
| Events in quadrant A | 3,579,947 | 509,037 |
| Events in quadrant B | 3,545,732 | 506,799 |
| Events in quadrant C | 3,524,302 | 478,177 |
| Events in quadrant D | 4,908,811 | 465,943 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14296 | 2 |
| B | 0 | 14157 | 2 |
| C | 0 | 14045 | 2 |
| D | 0 | 18654 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6337 | 131 | 2.067224% |
| B | 6337 | 141 | 2.225028% |
| C | 6337 | 155 | 2.445952% |
| D | 6337 | 401 | 6.327915% |
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 | 7652 | 6338 | 5 | 5 | 0.07% | 0.08% |  |
| B | 7652 | 6338 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7652 | 6338 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7652 | 6338 | 241 | 241 | 3.15% | 3.80% |  |
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 | 62710 | 346.61 | 910 | 896 | 178.3 |
| A | 11 | 29 | 11003 | 56.67 | 910 | 896 | 178.3 |
| A | 0 | 226 | 7916 | 39.36 | 910 | 896 | 178.3 |
| B | 0 | 198 | 20519 | 118.53 | 891 | 875 | 165.7 |
| B | 12 | 111 | 19035 | 109.58 | 891 | 875 | 165.7 |
| B | 11 | 111 | 17125 | 98.05 | 891 | 875 | 165.7 |
| C | 14 | 238 | 137941 | 705.58 | 845 | 855 | 194.3 |
| C | 3 | 233 | 90199 | 459.86 | 845 | 855 | 194.3 |
| C | 13 | 61 | 5917 | 26.05 | 845 | 855 | 194.3 |
| D | 1 | 52 | 878525 | 4290.79 | 854 | 833 | 204.6 |
| D | 11 | 176 | 721576 | 3523.51 | 854 | 833 | 204.6 |
| D | 7 | 96 | 47368 | 227.5 | 854 | 833 | 204.6 |
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 |  |