Observation information
- date-obs: 2018-04-12
- time-obs: 15:29:21.622500000
- date-end: 2018-04-15
- time-end: 09:49:22.456100000
- obs_id: G08_062T01_9000002038
- exposure: 109555.396469
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_062T01_9000002038cztM0_level2.fits
| modeM0/AS1G08_062T01_9000002038cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,970,136,000 | 2,049,448,320 |
| Size | 1.8 GB
| 1.9 GB
|
| Events in quadrant A | 11,981,434 | 12,353,069 |
| Events in quadrant B | 11,501,318 | 11,993,551 |
| Events in quadrant C | 11,928,910 | 12,359,476 |
| Events in quadrant D | 10,187,792 | 11,304,074 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 333 | 0 |
| B | 0 | 333 | 0 |
| C | 0 | 333 | 0 |
| D | 0 | 333 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 440299 | 0 |
| B | 0 | 455080 | 0 |
| C | 0 | 452856 | 0 |
| D | 0 | 546173 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4182 | 0 |
| B | 0 | 4182 | 0 |
| C | 0 | 4182 | 0 |
| D | 0 | 4182 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 205292 | 3276 | 1.595776% |
| B | 205292 | 3669 | 1.787210% |
| C | 205292 | 3998 | 1.947470% |
| D | 205292 | 7330 | 3.570524% |
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 | 238802 | 205277 | 0 | 0 | 0.00% | 0.00% |  |
| B | 238802 | 205270 | 0 | 0 | 0.00% | 0.00% |  |
| C | 238802 | 205272 | 0 | 0 | 0.00% | 0.00% |  |
| D | 238802 | 205209 | 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 | 11498 | 10.87 | 3120 | 2912 | 790.2 |
| A | 7 | 110 | 9729 | 8.63 | 3120 | 2912 | 790.2 |
| A | 9 | 19 | 9447 | 8.27 | 3120 | 2912 | 790.2 |
| B | 2 | 9 | 9915 | 11.91 | 3035 | 2887 | 590.0 |
| B | 3 | 17 | 7519 | 7.85 | 3035 | 2887 | 590.0 |
| B | 14 | 254 | 7518 | 7.85 | 3035 | 2887 | 590.0 |
| C | 12 | 250 | 8782 | 7.14 | 3152 | 2933 | 818.9 |
| C | 1 | 65 | 8605 | 6.93 | 3152 | 2933 | 818.9 |
| C | 12 | 241 | 8399 | 6.67 | 3152 | 2933 | 818.9 |
| D | 4 | 246 | 8435 | 7.45 | 2908 | 2644 | 776.9 |
| D | 6 | 231 | 7452 | 6.19 | 2908 | 2644 | 776.9 |
| D | 3 | 14 | 7341 | 6.05 | 2908 | 2644 | 776.9 |
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 |  |