Observation information
- date-obs: 2018-04-14
- time-obs: 02:54:55.528200000
- date-end: 2018-04-14
- time-end: 05:05:16.521700000
- obs_id: G08_062T01_9000002038
- exposure: 4555.59703143
- 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_9000002038_13751cztM0_level2.evt
| modeM0/AS1G08_062T01_9000002038_13751cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,714,240 | 105,600,960 |
| Size | 447.0 MB
| 100.7 MB
|
| Events in quadrant A | 3,223,645 | 683,182 |
| Events in quadrant B | 3,425,550 | 685,444 |
| Events in quadrant C | 3,247,112 | 708,521 |
| Events in quadrant D | 3,859,212 | 669,593 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13601 | 3 |
| B | 0 | 14287 | 2 |
| C | 0 | 13645 | 2 |
| D | 0 | 15838 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6470 | 26 | 0.401855% |
| B | 6470 | 57 | 0.880989% |
| C | 6470 | 22 | 0.340031% |
| D | 6470 | 45 | 0.695518% |
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 | 7816 | 6472 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7816 | 6472 | 12 | 12 | 0.15% | 0.19% |  |
| C | 7816 | 6472 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7816 | 6472 | 11 | 11 | 0.14% | 0.17% |  |
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 | 9 | 143 | 20512 | 117.72 | 822 | 807 | 167.4 |
| A | 0 | 23 | 14803 | 83.61 | 822 | 807 | 167.4 |
| A | 1 | 162 | 14293 | 80.57 | 822 | 807 | 167.4 |
| B | 4 | 48 | 41255 | 264.08 | 820 | 805 | 153.2 |
| B | 4 | 173 | 36960 | 236.04 | 820 | 805 | 153.2 |
| B | 0 | 219 | 34256 | 218.39 | 820 | 805 | 153.2 |
| C | 3 | 233 | 98557 | 525.07 | 805 | 812 | 186.2 |
| C | 14 | 220 | 10189 | 50.37 | 805 | 812 | 186.2 |
| C | 13 | 61 | 5888 | 27.27 | 805 | 812 | 186.2 |
| D | 1 | 52 | 657627 | 3410.4 | 792 | 769 | 192.6 |
| D | 5 | 222 | 65253 | 334.8 | 792 | 769 | 192.6 |
| D | 10 | 157 | 56975 | 291.82 | 792 | 769 | 192.6 |
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 |  |