Observation information
- date-obs: 2018-04-15
- time-obs: 06:56:08.462000000
- date-end: 2018-04-15
- time-end: 08:56:20.457800000
- obs_id: G08_062T01_9000002038
- exposure: 4422.1913176
- 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_13768cztM0_level2.evt
| modeM0/AS1G08_062T01_9000002038_13768cztM0_level2_quad_clean.evt
|
| Size (bytes) | 518,558,400 | 94,501,440 |
| Size | 494.5 MB
| 90.1 MB
|
| Events in quadrant A | 3,400,530 | 593,835 |
| Events in quadrant B | 3,228,571 | 593,850 |
| Events in quadrant C | 3,856,359 | 621,134 |
| Events in quadrant D | 4,768,743 | 589,983 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14416 | 2 |
| B | 0 | 13917 | 1 |
| C | 0 | 15741 | 1 |
| D | 0 | 18762 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6642 | 160 | 2.408913% |
| B | 6642 | 83 | 1.249624% |
| C | 6642 | 196 | 2.950918% |
| D | 6642 | 93 | 1.400181% |
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 | 7213 | 6644 | 61 | 61 | 0.85% | 0.92% |  |
| B | 7213 | 6644 | 9 | 9 | 0.12% | 0.14% |  |
| C | 7213 | 6644 | 132 | 132 | 1.83% | 1.99% |  |
| D | 7213 | 6644 | 37 | 37 | 0.51% | 0.56% |  |
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 | 263281 | 1602.04 | 801 | 785 | 163.9 |
| A | 15 | 69 | 19771 | 115.87 | 801 | 785 | 163.9 |
| A | 1 | 162 | 17902 | 104.47 | 801 | 785 | 163.9 |
| B | 0 | 219 | 48750 | 313.28 | 797 | 776 | 153.1 |
| B | 4 | 80 | 38949 | 249.28 | 797 | 776 | 153.1 |
| B | 3 | 209 | 21421 | 134.82 | 797 | 776 | 153.1 |
| C | 9 | 236 | 749628 | 4116.84 | 777 | 781 | 181.9 |
| C | 3 | 233 | 78006 | 424.55 | 777 | 781 | 181.9 |
| C | 13 | 61 | 5724 | 27.17 | 777 | 781 | 181.9 |
| D | 1 | 52 | 1346658 | 7040.92 | 780 | 757 | 191.2 |
| D | 5 | 222 | 201885 | 1052.18 | 780 | 757 | 191.2 |
| D | 10 | 157 | 147595 | 768.17 | 780 | 757 | 191.2 |
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 |  |