Observation information
- date-obs: 2015-10-11
- time-obs: 23:07:11.723600000
- date-end: 2015-10-12
- time-end: 01:38:48.719400000
- obs_id: P01_140T01_9000000018
- exposure: 2843.98873258
- 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_140T01_9000000018_00206cztM0_level2.evt
| modeM0/AS1P01_140T01_9000000018_00206cztM0_level2_quad_clean.evt
|
| Size (bytes) | 934,764,480 | 54,440,640 |
| Size | 891.5 MB
| 51.9 MB
|
| Events in quadrant A | 8,643,159 | 286,386 |
| Events in quadrant B | 6,589,959 | 328,947 |
| Events in quadrant C | 6,111,306 | 321,849 |
| Events in quadrant D | 6,583,794 | 309,709 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 232 | 116 |
| B | 0 | 232 | 116 |
| C | 0 | 232 | 116 |
| D | 0 | 232 | 116 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33 | 17 |
| B | 0 | 32 | 16 |
| C | 0 | 32 | 16 |
| D | 0 | 32 | 16 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 60082 | 30200 |
| B | 0 | 47616 | 23957 |
| C | 0 | 44715 | 22496 |
| D | 0 | 47611 | 23972 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5734 | 865 | 15.085455% |
| B | 5735 | 4 | 0.069747% |
| C | 5737 | 1 | 0.017431% |
| D | 5734 | 22 | 0.383676% |
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 | 7407 | 5740 | 1295 | 1295 | 17.48% | 22.56% |  |
| B | 7407 | 5740 | 61 | 61 | 0.82% | 1.06% |  |
| C | 7407 | 5742 | 30 | 30 | 0.41% | 0.52% |  |
| D | 7407 | 5741 | 203 | 203 | 2.74% | 3.54% |  |
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 | 66 | 2186804 | 5974.17 | 1636 | 1618 | 365.8 |
| A | 13 | 17 | 66695 | 177.92 | 1636 | 1618 | 365.8 |
| A | 0 | 6 | 36830 | 96.27 | 1636 | 1618 | 365.8 |
| B | 5 | 2 | 15001 | 32.91 | 1711 | 1728 | 403.3 |
| B | 0 | 183 | 11031 | 23.07 | 1711 | 1728 | 403.3 |
| B | 8 | 5 | 9974 | 20.45 | 1711 | 1728 | 403.3 |
| C | 0 | 186 | 24704 | 53.64 | 1541 | 1595 | 430.8 |
| C | 9 | 54 | 14754 | 30.55 | 1541 | 1595 | 430.8 |
| C | 1 | 1 | 12778 | 25.96 | 1541 | 1595 | 430.8 |
| D | 1 | 4 | 328700 | 711.66 | 1511 | 1559 | 459.7 |
| D | 1 | 5 | 99742 | 213.59 | 1511 | 1559 | 459.7 |
| D | 9 | 52 | 83783 | 178.87 | 1511 | 1559 | 459.7 |
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 |  |