Observation information
- date-obs: 2022-05-22
- time-obs: 14:26:12.624600000
- date-end: 2022-05-22
- time-end: 16:58:41.621300000
- obs_id: A11_080T01_9000005146
- exposure: 4354.50396056
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_080T01_9000005146_35947cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35947cztM0_level2_quad_clean.evt
|
| Size (bytes) | 478,022,400 | 98,795,520 |
| Size | 455.9 MB
| 94.2 MB
|
| Events in quadrant A | 3,111,302 | 659,184 |
| Events in quadrant B | 3,775,607 | 644,863 |
| Events in quadrant C | 3,425,148 | 642,163 |
| Events in quadrant D | 3,742,794 | 611,836 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30 | 0 |
| B | 0 | 30 | 0 |
| C | 0 | 30 | 0 |
| D | 0 | 30 | 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 | 12885 | 3 |
| B | 0 | 15097 | 2 |
| C | 0 | 13624 | 2 |
| D | 0 | 15113 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6225 | 13 | 0.208835% |
| B | 6225 | 158 | 2.538153% |
| C | 6225 | 116 | 1.863454% |
| D | 6225 | 141 | 2.265060% |
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 | 9149 | 6227 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9149 | 6227 | 103 | 103 | 1.13% | 1.65% |  |
| C | 9149 | 6227 | 91 | 91 | 0.99% | 1.46% |  |
| D | 9149 | 6227 | 114 | 114 | 1.25% | 1.83% |  |
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 | 10 | 83 | 182899 | 1180.45 | 753 | 741 | 154.3 |
| A | 15 | 169 | 13023 | 79.59 | 753 | 741 | 154.3 |
| A | 13 | 254 | 9686 | 57.97 | 753 | 741 | 154.3 |
| B | 5 | 172 | 500796 | 3497.34 | 736 | 719 | 143.0 |
| B | 0 | 213 | 151438 | 1054.07 | 736 | 719 | 143.0 |
| B | 5 | 255 | 90555 | 628.28 | 736 | 719 | 143.0 |
| C | 0 | 10 | 325421 | 1940.57 | 718 | 726 | 167.3 |
| C | 15 | 214 | 258974 | 1543.45 | 718 | 726 | 167.3 |
| C | 0 | 207 | 24313 | 140.97 | 718 | 726 | 167.3 |
| D | 13 | 249 | 342318 | 1907.09 | 721 | 702 | 179.1 |
| D | 2 | 250 | 187503 | 1042.83 | 721 | 702 | 179.1 |
| D | 8 | 195 | 138791 | 770.89 | 721 | 702 | 179.1 |
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 |  |