Observation information
- date-obs: 2021-08-14
- time-obs: 00:08:56.819100000
- date-end: 2021-08-14
- time-end: 02:19:34.820200000
- obs_id: A10_109T01_9000004638
- exposure: 5230.96506634
- 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_9000004638_31778cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004638_31778cztM0_level2_quad_clean.evt
|
| Size (bytes) | 614,160,000 | 118,071,360 |
| Size | 585.7 MB
| 112.6 MB
|
| Events in quadrant A | 3,774,349 | 779,428 |
| Events in quadrant B | 5,881,902 | 777,933 |
| Events in quadrant C | 3,945,629 | 750,409 |
| Events in quadrant D | 4,478,799 | 734,673 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16081 | 2 |
| B | 0 | 23329 | 3 |
| C | 0 | 16562 | 2 |
| D | 0 | 18618 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7668 | 49 | 0.639019% |
| B | 7668 | 159 | 2.073552% |
| C | 7668 | 175 | 2.282212% |
| D | 7668 | 47 | 0.612937% |
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 | 7838 | 7669 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7838 | 7669 | 13 | 13 | 0.17% | 0.17% |  |
| C | 7838 | 7669 | 39 | 39 | 0.50% | 0.51% |  |
| D | 7838 | 7669 | 9 | 9 | 0.11% | 0.12% |  |
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 | 0 | 13 | 92496 | 474.02 | 950 | 931 | 193.2 |
| A | 14 | 238 | 20224 | 99.88 | 950 | 931 | 193.2 |
| A | 13 | 254 | 13805 | 66.65 | 950 | 931 | 193.2 |
| B | 6 | 159 | 2065410 | 11374.6 | 937 | 914 | 181.5 |
| B | 0 | 229 | 50942 | 275.64 | 937 | 914 | 181.5 |
| B | 10 | 245 | 43558 | 234.95 | 937 | 914 | 181.5 |
| C | 14 | 238 | 152879 | 701.4 | 916 | 924 | 216.6 |
| C | 10 | 22 | 91656 | 418.81 | 916 | 924 | 216.6 |
| C | 0 | 10 | 88923 | 406.19 | 916 | 924 | 216.6 |
| D | 8 | 195 | 841505 | 3802.91 | 921 | 899 | 221.0 |
| D | 12 | 218 | 54329 | 241.72 | 921 | 899 | 221.0 |
| D | 12 | 227 | 39784 | 175.91 | 921 | 899 | 221.0 |
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 |  |