Observation information
- date-obs: 2017-11-03
- time-obs: 23:59:54.717800000
- date-end: 2017-11-04
- time-end: 02:11:25.712300000
- obs_id: G08_062T01_9000001660
- exposure: 4174.83526623
- 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_9000001660_11366cztM0_level2.evt
| modeM0/AS1G08_062T01_9000001660_11366cztM0_level2_quad_clean.evt
|
| Size (bytes) | 581,575,680 | 87,719,040 |
| Size | 554.6 MB
| 83.7 MB
|
| Events in quadrant A | 4,025,406 | 543,337 |
| Events in quadrant B | 4,795,116 | 524,481 |
| Events in quadrant C | 3,588,942 | 548,881 |
| Events in quadrant D | 4,675,807 | 498,354 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17237 | 3 |
| B | 0 | 19477 | 2 |
| C | 0 | 16178 | 2 |
| D | 0 | 19346 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7780 | 171 | 2.197943% |
| B | 7780 | 544 | 6.992288% |
| C | 7780 | 103 | 1.323907% |
| D | 7780 | 465 | 5.976864% |
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 | 7885 | 7782 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7885 | 7782 | 176 | 176 | 2.23% | 2.26% |  |
| C | 7885 | 7782 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7885 | 7782 | 260 | 260 | 3.30% | 3.34% |  |
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 | 174 | 340120 | 1783.63 | 928 | 908 | 190.2 |
| A | 1 | 162 | 31970 | 163.33 | 928 | 908 | 190.2 |
| A | 1 | 178 | 19637 | 98.48 | 928 | 908 | 190.2 |
| B | 4 | 239 | 791153 | 4459.35 | 911 | 886 | 177.2 |
| B | 3 | 64 | 283416 | 1594.27 | 911 | 886 | 177.2 |
| B | 3 | 189 | 45796 | 253.42 | 911 | 886 | 177.2 |
| C | 13 | 61 | 6706 | 26.87 | 916 | 920 | 215.4 |
| C | 14 | 234 | 6699 | 26.83 | 916 | 920 | 215.4 |
| C | 8 | 128 | 5423 | 20.91 | 916 | 920 | 215.4 |
| D | 10 | 253 | 729255 | 3185.11 | 871 | 849 | 228.7 |
| D | 13 | 104 | 155576 | 676.58 | 871 | 849 | 228.7 |
| D | 2 | 120 | 122551 | 532.17 | 871 | 849 | 228.7 |
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 |  |