Observation information
- date-obs: 2019-06-12
- time-obs: 10:59:49.902100000
- date-end: 2019-06-12
- time-end: 13:14:23.900300000
- obs_id: A05_180T01_9000002986
- exposure: 2791.60634518
- 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_9000002986_20032cztM0_level2.evt
| modeM0/AS1A05_180T01_9000002986_20032cztM0_level2_quad_clean.evt
|
| Size (bytes) | 523,627,200 | 74,822,400 |
| Size | 499.4 MB
| 71.4 MB
|
| Events in quadrant A | 3,878,145 | 472,120 |
| Events in quadrant B | 3,729,164 | 469,831 |
| Events in quadrant C | 3,618,277 | 446,872 |
| Events in quadrant D | 4,209,543 | 441,012 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15520 | 2 |
| B | 0 | 15118 | 2 |
| C | 0 | 14602 | 2 |
| D | 0 | 16872 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6246 | 156 | 2.497598% |
| B | 6246 | 108 | 1.729107% |
| C | 6246 | 98 | 1.569004% |
| D | 6246 | 93 | 1.488953% |
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 | 7621 | 6247 | 39 | 39 | 0.51% | 0.62% |  |
| B | 7621 | 6247 | 14 | 14 | 0.18% | 0.22% |  |
| C | 7621 | 6247 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7621 | 6247 | 22 | 22 | 0.29% | 0.35% |  |
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 | 5 | 16 | 309289 | 1680.08 | 926 | 913 | 183.5 |
| A | 0 | 226 | 8042 | 38.84 | 926 | 913 | 183.5 |
| A | 13 | 254 | 6535 | 30.63 | 926 | 913 | 183.5 |
| B | 7 | 220 | 49591 | 290.13 | 911 | 894 | 167.8 |
| B | 4 | 80 | 26409 | 152.01 | 911 | 894 | 167.8 |
| B | 0 | 189 | 19784 | 112.54 | 911 | 894 | 167.8 |
| C | 14 | 238 | 141331 | 702.73 | 873 | 883 | 199.9 |
| C | 7 | 220 | 41058 | 201.01 | 873 | 883 | 199.9 |
| C | 4 | 254 | 25288 | 122.11 | 873 | 883 | 199.9 |
| D | 1 | 52 | 690795 | 3216.0 | 898 | 878 | 214.5 |
| D | 8 | 195 | 107655 | 497.73 | 898 | 878 | 214.5 |
| D | 2 | 234 | 24274 | 109.06 | 898 | 878 | 214.5 |
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 |  |