Observation information
- date-obs: 2019-06-17
- time-obs: 11:06:29.818800000
- date-end: 2019-06-17
- time-end: 13:26:47.816300000
- obs_id: A05_180T01_9000002992
- exposure: 2838.69109523
- 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/AS1A05_180T01_9000002992_20106cztM0_level2.evt
| modeM0/AS1A05_180T01_9000002992_20106cztM0_level2_quad_clean.evt
|
| Size (bytes) | 571,026,240 | 74,900,160 |
| Size | 544.6 MB
| 71.4 MB
|
| Events in quadrant A | 4,436,256 | 457,393 |
| Events in quadrant B | 5,273,305 | 444,378 |
| Events in quadrant C | 3,538,504 | 459,322 |
| Events in quadrant D | 3,608,737 | 456,999 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17041 | 2 |
| B | 0 | 20086 | 2 |
| C | 0 | 14103 | 2 |
| D | 0 | 14535 | 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 | 6440 | 446 | 6.925466% |
| B | 6440 | 616 | 9.565217% |
| C | 6440 | 139 | 2.158385% |
| D | 6440 | 120 | 1.863354% |
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 | 7755 | 6441 | 226 | 226 | 2.91% | 3.51% |  |
| B | 7755 | 6441 | 373 | 373 | 4.81% | 5.79% |  |
| C | 7755 | 6441 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7755 | 6441 | 24 | 24 | 0.31% | 0.37% |  |
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 | 14 | 238 | 900856 | 4955.24 | 908 | 893 | 181.6 |
| A | 14 | 254 | 23038 | 121.93 | 908 | 893 | 181.6 |
| A | 9 | 143 | 16144 | 83.97 | 908 | 893 | 181.6 |
| B | 10 | 245 | 1731237 | 10599.19 | 877 | 864 | 163.3 |
| B | 4 | 80 | 49272 | 296.52 | 877 | 864 | 163.3 |
| B | 0 | 198 | 28226 | 167.6 | 877 | 864 | 163.3 |
| C | 14 | 238 | 139223 | 693.61 | 871 | 882 | 199.5 |
| C | 13 | 61 | 6115 | 26.24 | 871 | 882 | 199.5 |
| C | 3 | 233 | 3437 | 12.81 | 871 | 882 | 199.5 |
| D | 11 | 176 | 93334 | 432.17 | 895 | 874 | 213.9 |
| D | 7 | 238 | 44700 | 204.85 | 895 | 874 | 213.9 |
| D | 1 | 52 | 30673 | 139.28 | 895 | 874 | 213.9 |
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 |  |