Observation information
- date-obs: 2018-07-24
- time-obs: 20:41:32.350400000
- date-end: 2018-07-24
- time-end: 23:01:25.346000000
- obs_id: T02_073T01_9000002252
- exposure: 4121.78123052
- 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_9000002252_15257cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002252_15257cztM0_level2_quad_clean.evt
|
| Size (bytes) | 438,978,240 | 92,456,640 |
| Size | 418.6 MB
| 88.2 MB
|
| Events in quadrant A | 3,057,569 | 594,016 |
| Events in quadrant B | 3,448,350 | 604,172 |
| Events in quadrant C | 3,359,681 | 596,917 |
| Events in quadrant D | 3,003,567 | 568,210 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 22 | 0 |
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13130 | 3 |
| B | 0 | 14265 | 2 |
| C | 0 | 13797 | 2 |
| D | 0 | 13258 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6261 | 17 | 0.271522% |
| B | 6261 | 140 | 2.236065% |
| C | 6261 | 38 | 0.606932% |
| D | 6261 | 15 | 0.239578% |
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 | 7572 | 6263 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7572 | 6263 | 72 | 72 | 0.95% | 1.15% |  |
| C | 7572 | 6263 | 3 | 3 | 0.04% | 0.05% |  |
| D | 7572 | 6263 | 3 | 3 | 0.04% | 0.05% |  |
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 | 12 | 189 | 39720 | 248.1 | 781 | 764 | 157.0 |
| A | 15 | 69 | 17140 | 104.29 | 781 | 764 | 157.0 |
| A | 0 | 226 | 6700 | 37.8 | 781 | 764 | 157.0 |
| B | 10 | 16 | 244095 | 1653.84 | 785 | 767 | 147.1 |
| B | 3 | 64 | 65457 | 439.68 | 785 | 767 | 147.1 |
| B | 4 | 48 | 33131 | 219.97 | 785 | 767 | 147.1 |
| C | 3 | 233 | 321499 | 1811.65 | 773 | 781 | 177.0 |
| C | 4 | 254 | 22836 | 124.58 | 773 | 781 | 177.0 |
| C | 13 | 61 | 5374 | 25.94 | 773 | 781 | 177.0 |
| D | 12 | 2 | 36420 | 193.9 | 766 | 747 | 184.0 |
| D | 2 | 234 | 22565 | 118.59 | 766 | 747 | 184.0 |
| D | 10 | 70 | 22335 | 117.34 | 766 | 747 | 184.0 |
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 |  |