Observation information
- date-obs: 2021-06-28
- time-obs: 11:28:46.896700000
- date-end: 2021-06-28
- time-end: 13:55:37.892000000
- obs_id: A10_109T01_9000004492
- exposure: 3569.20882924
- sourceid: Cygnus X-1
- observer: tanmoy
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_109T01_9000004492_31090cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004492_31090cztM0_level2_quad_clean.evt
|
| Size (bytes) | 590,860,800 | 84,090,240 |
| Size | 563.5 MB
| 80.2 MB
|
| Events in quadrant A | 3,589,853 | 537,552 |
| Events in quadrant B | 5,378,096 | 529,552 |
| Events in quadrant C | 4,121,752 | 511,564 |
| Events in quadrant D | 4,357,325 | 506,953 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14883 | 2 |
| B | 0 | 20486 | 2 |
| C | 0 | 16533 | 4 |
| D | 0 | 17672 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6616 | 140 | 2.116082% |
| B | 6617 | 222 | 3.354995% |
| C | 6616 | 305 | 4.610036% |
| D | 6616 | 115 | 1.738210% |
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 | 8811 | 6618 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8812 | 6619 | 0 | 0 | 0.00% | 0.00% |  |
| C | 8811 | 6618 | 36 | 36 | 0.41% | 0.54% |  |
| D | 8811 | 6618 | 2 | 2 | 0.02% | 0.03% |  |
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 | 13 | 254 | 11763 | 59.18 | 930 | 914 | 183.3 |
| A | 3 | 137 | 9130 | 44.82 | 930 | 914 | 183.3 |
| A | 0 | 226 | 7824 | 37.69 | 930 | 914 | 183.3 |
| B | 6 | 159 | 1748529 | 10010.32 | 908 | 886 | 174.6 |
| B | 12 | 111 | 21196 | 116.33 | 908 | 886 | 174.6 |
| B | 0 | 230 | 21013 | 115.29 | 908 | 886 | 174.6 |
| C | 10 | 22 | 262440 | 1283.93 | 878 | 888 | 203.7 |
| C | 0 | 10 | 252239 | 1233.85 | 878 | 888 | 203.7 |
| C | 14 | 238 | 143771 | 701.4 | 878 | 888 | 203.7 |
| D | 8 | 195 | 600623 | 2856.05 | 899 | 878 | 210.0 |
| D | 13 | 174 | 316035 | 1500.81 | 899 | 878 | 210.0 |
| D | 2 | 234 | 26079 | 120.01 | 899 | 878 | 210.0 |
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 |  |