Observation information
- date-obs: 2024-09-20
- time-obs: 11:25:28.730700000
- date-end: 2024-09-20
- time-end: 17:14:31.690400000
- obs_id: A13_037T01_9000006436
- exposure: 19090.1999067
- 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_9000006436_48571cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48571cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,321,701,120 | 306,593,280 |
| Size | 1.2 GB
| 292.4 MB
|
| Events in quadrant A | 19,996,127 | 1,957,876 |
| Events in quadrant B | 9,234,554 | 2,100,174 |
| Events in quadrant C | 8,477,280 | 2,026,924 |
| Events in quadrant D | 9,670,261 | 1,819,332 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 74226 | 4 |
| B | 0 | 42385 | 2 |
| C | 0 | 41111 | 2 |
| D | 0 | 44356 | 2 |
| 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 | 406 | 0 |
| B | 0 | 406 | 0 |
| C | 0 | 406 | 0 |
| D | 0 | 406 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 20002 | 790 | 3.949605% |
| B | 20002 | 376 | 1.879812% |
| C | 20003 | 165 | 0.824876% |
| D | 20003 | 399 | 1.994701% |
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 | 20942 | 20004 | 26 | 26 | 0.12% | 0.13% |  |
| B | 20942 | 20004 | 39 | 39 | 0.19% | 0.19% |  |
| C | 20943 | 20005 | 5 | 5 | 0.02% | 0.02% |  |
| D | 20943 | 20005 | 213 | 213 | 1.02% | 1.06% |  |
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 | 11257573 | 25070.9 | 2154 | 2107 | 448.9 |
| A | 13 | 248 | 206249 | 454.71 | 2154 | 2107 | 448.9 |
| A | 12 | 189 | 158609 | 348.6 | 2154 | 2107 | 448.9 |
| B | 5 | 255 | 297853 | 685.59 | 2166 | 2088 | 431.4 |
| B | 12 | 16 | 215448 | 494.57 | 2166 | 2088 | 431.4 |
| B | 12 | 111 | 56432 | 125.97 | 2166 | 2088 | 431.4 |
| C | 12 | 250 | 82418 | 158.67 | 2147 | 2151 | 505.9 |
| C | 14 | 254 | 25512 | 46.18 | 2147 | 2151 | 505.9 |
| C | 13 | 61 | 14240 | 23.9 | 2147 | 2151 | 505.9 |
| D | 13 | 171 | 604668 | 1137.6 | 2129 | 2063 | 529.7 |
| D | 6 | 239 | 267125 | 500.39 | 2129 | 2063 | 529.7 |
| D | 5 | 171 | 207132 | 387.13 | 2129 | 2063 | 529.7 |
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 |  |