Observation information
- date-obs: 2018-07-28
- time-obs: 11:53:12.449600000
- date-end: 2018-07-28
- time-end: 14:07:11.447500000
- obs_id: T02_073T01_9000002260
- exposure: 4132.73222804
- 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_15310cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002260_15310cztM0_level2_quad_clean.evt
|
| Size (bytes) | 460,422,720 | 86,817,600 |
| Size | 439.1 MB
| 82.8 MB
|
| Events in quadrant A | 3,235,220 | 554,704 |
| Events in quadrant B | 3,335,273 | 559,040 |
| Events in quadrant C | 3,332,823 | 544,335 |
| Events in quadrant D | 3,603,902 | 522,555 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13789 | 3 |
| B | 0 | 14054 | 2 |
| C | 0 | 13977 | 2 |
| D | 0 | 14966 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6424 | 83 | 1.292030% |
| B | 6424 | 90 | 1.400996% |
| C | 6424 | 72 | 1.120797% |
| D | 6424 | 116 | 1.805729% |
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 | 7570 | 6425 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7570 | 6425 | 3 | 3 | 0.04% | 0.05% |  |
| C | 7570 | 6425 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7570 | 6425 | 56 | 56 | 0.74% | 0.87% |  |
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 | 9 | 143 | 14866 | 83.77 | 836 | 818 | 167.7 |
| A | 0 | 226 | 7447 | 39.53 | 836 | 818 | 167.7 |
| A | 15 | 239 | 6762 | 35.44 | 836 | 818 | 167.7 |
| B | 10 | 16 | 99678 | 627.69 | 826 | 806 | 157.5 |
| B | 12 | 111 | 18906 | 114.91 | 826 | 806 | 157.5 |
| B | 11 | 111 | 16140 | 97.35 | 826 | 806 | 157.5 |
| C | 3 | 233 | 171674 | 922.47 | 807 | 812 | 185.2 |
| C | 7 | 247 | 17672 | 91.02 | 807 | 812 | 185.2 |
| C | 13 | 61 | 5619 | 25.95 | 807 | 812 | 185.2 |
| D | 13 | 122 | 317518 | 1608.09 | 809 | 785 | 197.0 |
| D | 2 | 33 | 203603 | 1029.73 | 809 | 785 | 197.0 |
| D | 2 | 234 | 23825 | 116.98 | 809 | 785 | 197.0 |
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 |  |