Observation information
- date-obs: 2018-07-28
- time-obs: 04:46:33.391000000
- date-end: 2018-07-31
- time-end: 00:43:54.349200000
- obs_id: T02_073T01_9000002260
- exposure: 98492.7248206
- sourceid: Cygnus X-1
- observer: mithunnps
- ra_pnt: 299.563
- dec_pnt: 35.202
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_073T01_9000002260cztM0_level2.fits
| modeM0/AS1T02_073T01_9000002260cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,992,153,600 | 1,800,656,640 |
| Size | 1.9 GB
| 1.7 GB
|
| Events in quadrant A | 12,156,378 | 10,561,070 |
| Events in quadrant B | 11,735,756 | 10,743,620 |
| Events in quadrant C | 12,079,316 | 10,177,212 |
| Events in quadrant D | 10,266,044 | 8,960,980 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4190 | 0 |
| B | 0 | 4190 | 0 |
| C | 0 | 4190 | 0 |
| D | 0 | 4190 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 439092 | 0 |
| B | 0 | 434781 | 0 |
| C | 0 | 441334 | 0 |
| D | 0 | 527786 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 340 | 0 |
| B | 0 | 340 | 0 |
| C | 0 | 340 | 0 |
| D | 0 | 341 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 205716 | 4027 | 1.957553% |
| B | 205716 | 3042 | 1.478738% |
| C | 205716 | 2081 | 1.011589% |
| D | 205716 | 11468 | 5.574676% |
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 | 244642 | 205682 | 0 | 0 | 0.00% | 0.00% |  |
| B | 244642 | 205690 | 0 | 0 | 0.00% | 0.00% |  |
| C | 244642 | 205696 | 0 | 0 | 0.00% | 0.00% |  |
| D | 244642 | 205638 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 11749 | 11.34 | 3162 | 2960 | 775.2 |
| A | 7 | 110 | 9568 | 8.52 | 3162 | 2960 | 775.2 |
| A | 15 | 236 | 9110 | 7.93 | 3162 | 2960 | 775.2 |
| B | 2 | 9 | 9518 | 10.83 | 3097 | 2951 | 606.1 |
| B | 2 | 8 | 7996 | 8.32 | 3097 | 2951 | 606.1 |
| B | 5 | 128 | 7623 | 7.71 | 3097 | 2951 | 606.1 |
| C | 1 | 80 | 9110 | 7.55 | 3187 | 2970 | 813.6 |
| C | 1 | 81 | 9034 | 7.45 | 3187 | 2970 | 813.6 |
| C | 12 | 241 | 8343 | 6.6 | 3187 | 2970 | 813.6 |
| D | 6 | 231 | 7332 | 5.95 | 2933 | 2668 | 783.5 |
| D | 3 | 14 | 7254 | 5.85 | 2933 | 2668 | 783.5 |
| D | 10 | 189 | 7103 | 5.66 | 2933 | 2668 | 783.5 |
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 |  |