Observation information
- date-obs: 2018-07-28
- time-obs: 13:51:46.447500000
- date-end: 2018-07-28
- time-end: 15:50:08.445800000
- obs_id: T02_073T01_9000002260
- exposure: 4461.91397001
- 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_9000002260_15312cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002260_15312cztM0_level2_quad_clean.evt
|
| Size (bytes) | 427,593,600 | 97,099,200 |
| Size | 407.8 MB
| 92.6 MB
|
| Events in quadrant A | 2,957,158 | 640,617 |
| Events in quadrant B | 3,210,243 | 646,783 |
| Events in quadrant C | 3,082,769 | 636,238 |
| Events in quadrant D | 3,301,701 | 607,868 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12611 | 2 |
| B | 0 | 13317 | 1 |
| C | 0 | 12881 | 1 |
| D | 0 | 13625 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5857 | 75 | 1.280519% |
| B | 5857 | 123 | 2.100051% |
| C | 5857 | 69 | 1.178078% |
| D | 5857 | 117 | 1.997610% |
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 | 7103 | 5858 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7103 | 5858 | 28 | 28 | 0.39% | 0.48% |  |
| C | 7103 | 5858 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7103 | 5858 | 38 | 38 | 0.53% | 0.65% |  |
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 | 226 | 6733 | 38.92 | 769 | 754 | 153.6 |
| A | 12 | 194 | 5717 | 32.31 | 769 | 754 | 153.6 |
| A | 3 | 137 | 5076 | 28.13 | 769 | 754 | 153.6 |
| B | 10 | 16 | 220330 | 1532.87 | 760 | 743 | 143.3 |
| B | 12 | 111 | 16609 | 110.76 | 760 | 743 | 143.3 |
| B | 11 | 111 | 14527 | 96.22 | 760 | 743 | 143.3 |
| C | 3 | 233 | 143242 | 826.94 | 752 | 757 | 172.3 |
| C | 7 | 221 | 8975 | 47.69 | 752 | 757 | 172.3 |
| C | 13 | 61 | 5284 | 26.27 | 752 | 757 | 172.3 |
| D | 13 | 122 | 250871 | 1382.93 | 750 | 730 | 180.9 |
| D | 2 | 33 | 134606 | 740.15 | 750 | 730 | 180.9 |
| D | 7 | 223 | 48380 | 263.44 | 750 | 730 | 180.9 |
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 |  |