Observation information
- date-obs: 2021-11-06
- time-obs: 04:22:06.687800000
- date-end: 2021-11-06
- time-end: 10:01:42.675600000
- obs_id: A11_080T01_9000004756
- exposure: 11525.9994426
- 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_9000004756_33026cztM0_level2.evt
| modeM0/AS1A11_080T01_9000004756_33026cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,035,255,680 | 233,213,760 |
| Size | 1.9 GB
| 222.4 MB
|
| Events in quadrant A | 7,393,782 | 1,644,004 |
| Events in quadrant B | 11,767,119 | 1,566,710 |
| Events in quadrant C | 16,074,312 | 1,486,383 |
| Events in quadrant D | 25,354,987 | 1,285,694 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 318 | 0 |
| B | 0 | 318 | 0 |
| C | 0 | 318 | 0 |
| D | 0 | 318 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 47 | 0 |
| B | 0 | 47 | 0 |
| C | 0 | 47 | 0 |
| D | 0 | 48 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32034 | 5 |
| B | 0 | 44804 | 4 |
| C | 0 | 58350 | 4 |
| D | 0 | 86210 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 15628 | 62 | 0.396724% |
| B | 15628 | 1215 | 7.774507% |
| C | 15628 | 2945 | 18.844382% |
| D | 15628 | 5373 | 34.380599% |
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 | 19777 | 15631 | 28 | 28 | 0.14% | 0.18% |  |
| B | 19777 | 15631 | 874 | 874 | 4.42% | 5.59% |  |
| C | 19777 | 15631 | 2145 | 2145 | 10.85% | 13.72% |  |
| D | 19777 | 15631 | 5248 | 5248 | 26.54% | 33.57% |  |
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 | 15 | 169 | 168764 | 452.94 | 1837 | 1804 | 368.6 |
| A | 7 | 16 | 60107 | 158.17 | 1837 | 1804 | 368.6 |
| A | 13 | 6 | 37117 | 95.8 | 1837 | 1804 | 368.6 |
| B | 5 | 172 | 2895534 | 8584.89 | 1771 | 1730 | 337.1 |
| B | 5 | 31 | 793743 | 2349.62 | 1771 | 1730 | 337.1 |
| B | 0 | 189 | 354689 | 1047.1 | 1771 | 1730 | 337.1 |
| C | 7 | 221 | 9137934 | 24567.43 | 1609 | 1629 | 371.9 |
| C | 0 | 10 | 495250 | 1327.34 | 1609 | 1629 | 371.9 |
| C | 1 | 241 | 74243 | 195.26 | 1609 | 1629 | 371.9 |
| D | 7 | 223 | 11442947 | 28092.33 | 1560 | 1532 | 407.3 |
| D | 8 | 195 | 4339783 | 10651.79 | 1560 | 1532 | 407.3 |
| D | 2 | 250 | 1710428 | 4195.89 | 1560 | 1532 | 407.3 |
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 |  |