Observation information
- date-obs: 2021-06-30
- time-obs: 02:04:08.843600000
- date-end: 2021-06-30
- time-end: 07:46:10.837100000
- obs_id: A10_109T01_9000004492
- exposure: 11341.1531313
- 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_31115cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004492_31115cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,471,322,880 | 254,989,440 |
| Size | 1.4 GB
| 243.2 MB
|
| Events in quadrant A | 9,011,844 | 1,643,911 |
| Events in quadrant B | 14,483,916 | 1,631,416 |
| Events in quadrant C | 9,793,581 | 1,582,136 |
| Events in quadrant D | 9,999,155 | 1,567,702 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38553 | 4 |
| B | 0 | 56909 | 4 |
| C | 0 | 40784 | 4 |
| D | 0 | 41536 | 5 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 380 | 0 |
| B | 0 | 380 | 0 |
| C | 0 | 380 | 0 |
| D | 0 | 380 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18846 | 204 | 1.082458% |
| B | 18846 | 434 | 2.302876% |
| C | 18846 | 486 | 2.578797% |
| D | 18845 | 163 | 0.864951% |
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 | 20506 | 18850 | 1 | 1 | 0.00% | 0.01% |  |
| B | 20506 | 18850 | 1 | 1 | 0.00% | 0.01% |  |
| C | 20506 | 18850 | 68 | 68 | 0.33% | 0.36% |  |
| D | 20505 | 18849 | 26 | 26 | 0.13% | 0.14% |  |
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 | 29127 | 57.43 | 2334 | 2285 | 467.4 |
| A | 3 | 137 | 24580 | 47.7 | 2334 | 2285 | 467.4 |
| A | 0 | 226 | 19102 | 35.98 | 2334 | 2285 | 467.4 |
| B | 6 | 159 | 5231085 | 11843.65 | 2297 | 2239 | 441.5 |
| B | 0 | 190 | 87758 | 193.71 | 2297 | 2239 | 441.5 |
| B | 0 | 183 | 86217 | 190.22 | 2297 | 2239 | 441.5 |
| C | 14 | 238 | 359712 | 685.75 | 2232 | 2254 | 521.3 |
| C | 10 | 22 | 264354 | 502.82 | 2232 | 2254 | 521.3 |
| C | 0 | 10 | 235278 | 447.04 | 2232 | 2254 | 521.3 |
| D | 8 | 195 | 795572 | 1473.06 | 2260 | 2203 | 538.6 |
| D | 12 | 218 | 282439 | 520.32 | 2260 | 2203 | 538.6 |
| D | 13 | 174 | 249870 | 459.85 | 2260 | 2203 | 538.6 |
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 |  |