Observation information
- date-obs: 2021-08-19
- time-obs: 08:37:29.917800000
- date-end: 2021-08-19
- time-end: 11:13:53.919600000
- obs_id: A10_109T01_9000004646
- exposure: 4294.18506213
- 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_9000004646_31858cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004646_31858cztM0_level2_quad_clean.evt
|
| Size (bytes) | 661,043,520 | 105,223,680 |
| Size | 630.4 MB
| 100.3 MB
|
| Events in quadrant A | 4,022,082 | 702,902 |
| Events in quadrant B | 5,779,654 | 696,198 |
| Events in quadrant C | 5,325,470 | 647,009 |
| Events in quadrant D | 4,417,918 | 651,306 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16318 | 2 |
| B | 0 | 21946 | 2 |
| C | 0 | 20508 | 2 |
| D | 0 | 17874 | 3 |
| 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 | 7024 | 141 | 2.007403% |
| B | 7025 | 246 | 3.501779% |
| C | 7025 | 637 | 9.067616% |
| D | 7024 | 123 | 1.751139% |
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 | 9384 | 7026 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9385 | 7027 | 2 | 2 | 0.02% | 0.03% |  |
| C | 9385 | 7027 | 321 | 321 | 3.42% | 4.57% |  |
| D | 9384 | 7026 | 18 | 18 | 0.19% | 0.26% |  |
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 | 6 | 30104 | 142.56 | 1036 | 1021 | 204.0 |
| A | 13 | 254 | 13043 | 58.93 | 1036 | 1021 | 204.0 |
| A | 3 | 137 | 9669 | 42.39 | 1036 | 1021 | 204.0 |
| B | 6 | 159 | 1779842 | 9366.06 | 1004 | 981 | 189.9 |
| B | 0 | 190 | 48916 | 252.39 | 1004 | 981 | 189.9 |
| B | 12 | 111 | 22787 | 114.81 | 1004 | 981 | 189.9 |
| C | 0 | 10 | 1339156 | 6214.88 | 930 | 941 | 215.3 |
| C | 3 | 233 | 158445 | 731.47 | 930 | 941 | 215.3 |
| C | 14 | 238 | 153505 | 708.53 | 930 | 941 | 215.3 |
| D | 10 | 203 | 237512 | 1021.31 | 983 | 963 | 231.6 |
| D | 8 | 195 | 211856 | 910.54 | 983 | 963 | 231.6 |
| D | 13 | 174 | 96630 | 413.05 | 983 | 963 | 231.6 |
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 |  |