Observation information
- date-obs: 2016-01-08
- time-obs: 19:57:08.218000000
- date-end: 2016-01-09
- time-end: 16:06:48.229500000
- obs_id: G02_016T01_9000000258
- exposure: 36296.6197356
- 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/AS1G02_016T01_9000000258cztM0_level2.fits
| modeM0/AS1G02_016T01_9000000258cztM0_level2_quad_clean.evt
|
| Size (bytes) | 540,858,240 | 618,600,960 |
| Size | 515.8 MB
| 589.9 MB
|
| Events in quadrant A | 3,119,754 | 3,740,932 |
| Events in quadrant B | 3,115,584 | 3,778,398 |
| Events in quadrant C | 3,108,260 | 3,606,143 |
| Events in quadrant D | 2,649,760 | 3,224,514 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 287158 | 0 |
| B | 0 | 280447 | 0 |
| C | 0 | 266070 | 0 |
| D | 0 | 291269 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1302 | 0 |
| B | 0 | 1302 | 0 |
| C | 0 | 1302 | 0 |
| D | 0 | 1302 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 86 | 0 |
| B | 0 | 86 | 0 |
| C | 0 | 86 | 0 |
| D | 0 | 86 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 63934 | 847 | 1.324804% |
| B | 63934 | 300 | 0.469234% |
| C | 63934 | 233 | 0.364438% |
| D | 63934 | 2417 | 3.780461% |
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 | 72581 | 63930 | 0 | 0 | 0.00% | 0.00% |  |
| B | 72581 | 63933 | 0 | 0 | 0.00% | 0.00% |  |
| C | 72581 | 63931 | 0 | 0 | 0.00% | 0.00% |  |
| D | 72580 | 63911 | 0 | 0 | 0.00% | 0.00% |  |
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 | 29 | 2925 | 11.29 | 806 | 750 | 192.7 |
| A | 7 | 110 | 2874 | 11.02 | 806 | 750 | 192.7 |
| A | 14 | 188 | 2872 | 11.01 | 806 | 750 | 192.7 |
| B | 2 | 9 | 2525 | 11.56 | 820 | 776 | 151.4 |
| B | 5 | 128 | 2065 | 8.52 | 820 | 776 | 151.4 |
| B | 14 | 254 | 2045 | 8.38 | 820 | 776 | 151.4 |
| C | 1 | 81 | 2135 | 6.82 | 819 | 757 | 201.9 |
| C | 12 | 241 | 2086 | 6.58 | 819 | 757 | 201.9 |
| C | 3 | 235 | 2080 | 6.55 | 819 | 757 | 201.9 |
| D | 11 | 82 | 1931 | 6.93 | 753 | 691 | 178.9 |
| D | 6 | 231 | 1897 | 6.74 | 753 | 691 | 178.9 |
| D | 6 | 44 | 1887 | 6.69 | 753 | 691 | 178.9 |
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 |  |