Observation information
- date-obs: 2024-12-08
- time-obs: 22:42:47.323500000
- date-end: 2024-12-09
- time-end: 00:47:08.297200000
- obs_id: A13_037T01_9000006440
- exposure: 93.4708273411
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_037T01_9000006440_49748cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49748cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,297,615,680 | 44,308,800 |
| Size | 1.2 GB
| 42.3 MB
|
| Events in quadrant A | 15,843,589 | 85,741 |
| Events in quadrant B | 5,535,916 | 638,592 |
| Events in quadrant C | 10,620,834 | 8,924 |
| Events in quadrant D | 15,526,968 | 150,398 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| 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 | 51494 | 1 |
| B | 0 | 20991 | 1 |
| C | 0 | 36128 | 6 |
| D | 0 | 50730 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6561 | 5937 | 90.489255% |
| B | 6562 | 349 | 5.318500% |
| C | 6561 | 6489 | 98.902606% |
| D | 6561 | 5089 | 77.564396% |
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 | 7461 | 6561 | 5853 | 5853 | 78.45% | 89.21% |  |
| B | 7462 | 6562 | 174 | 174 | 2.33% | 2.65% |  |
| C | 7460 | 6560 | 1491 | 1491 | 19.99% | 22.73% |  |
| D | 7460 | 6560 | 5093 | 5093 | 68.27% | 77.64% |  |
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 | 6792803 | 53138.02 | 446 | 430 | 127.8 |
| A | 7 | 64 | 1902273 | 14878.48 | 446 | 430 | 127.8 |
| A | 0 | 98 | 1190681 | 9311.56 | 446 | 430 | 127.8 |
| B | 10 | 128 | 1051472 | 7178.55 | 686 | 663 | 146.4 |
| B | 1 | 207 | 936445 | 6392.75 | 686 | 663 | 146.4 |
| B | 4 | 21 | 282385 | 1924.57 | 686 | 663 | 146.4 |
| C | 15 | 180 | 3360985 | 97165.61 | 100 | 99 | 34.6 |
| C | 15 | 190 | 1283641 | 37108.11 | 100 | 99 | 34.6 |
| C | 15 | 181 | 1131699 | 32715.36 | 100 | 99 | 34.6 |
| D | 15 | 168 | 2524554 | 19880.19 | 419 | 404 | 127.0 |
| D | 8 | 129 | 2152013 | 16946.06 | 419 | 404 | 127.0 |
| D | 15 | 185 | 1551941 | 12219.89 | 419 | 404 | 127.0 |
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 |  |