Observation information
- date-obs: 2015-11-15
- time-obs: 15-52-57.000007784
- date-end: 2015-11-15
- time-end: 17-49-53.000007707
- obs_id: P01_147T01_9000000106
- exposure: 3838.9364715
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5635
- dec_pnt: 35.20176
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_147T01_9000000106_00719cztM0_level2.evt
| modeM0/AS1P01_147T01_9000000106_00719cztM0_level2_quad_clean.evt
|
| Size (bytes) | 931,829,760 | 67,348,800 |
| Size | 888.7 MB
| 64.2 MB
|
| Events in quadrant A | 6,823,924 | 413,372 |
| Events in quadrant B | 7,129,865 | 415,638 |
| Events in quadrant C | 6,745,824 | 405,390 |
| Events in quadrant D | 7,126,784 | 390,188 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24481 | 1 |
| B | 0 | 25396 | 1 |
| C | 0 | 24284 | 1 |
| D | 0 | 25403 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5936 | 13 | 0.219003% |
| B | 5936 | 19 | 0.320081% |
| C | 5936 | 7 | 0.117925% |
| D | 5937 | 65 | 1.094829% |
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 | 7016 | 5937 | 133 | 133 | 1.90% | 2.24% |  |
| B | 7016 | 5937 | 159 | 159 | 2.27% | 2.68% |  |
| C | 7016 | 5937 | 88 | 88 | 1.25% | 1.48% |  |
| D | 7017 | 5938 | 300 | 300 | 4.28% | 5.05% |  |
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 | 15 | 17 | 111353 | 260.03 | 1738 | 1746 | 421.5 |
| A | 15 | 171 | 30031 | 67.1 | 1738 | 1746 | 421.5 |
| A | 10 | 230 | 12999 | 26.7 | 1738 | 1746 | 421.5 |
| B | 7 | 221 | 64684 | 146.62 | 1830 | 1838 | 428.6 |
| B | 0 | 220 | 31635 | 69.52 | 1830 | 1838 | 428.6 |
| B | 5 | 249 | 24468 | 52.8 | 1830 | 1838 | 428.6 |
| C | 15 | 241 | 106747 | 223.18 | 1686 | 1747 | 470.5 |
| C | 3 | 111 | 28185 | 56.2 | 1686 | 1747 | 470.5 |
| C | 3 | 79 | 16985 | 32.39 | 1686 | 1747 | 470.5 |
| D | 6 | 226 | 649606 | 1302.95 | 1621 | 1683 | 497.3 |
| D | 1 | 4 | 159658 | 317.68 | 1621 | 1683 | 497.3 |
| D | 12 | 233 | 101254 | 200.23 | 1621 | 1683 | 497.3 |
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 |  |