Observation information
- date-obs: 2024-09-21
- time-obs: 01:15:39.665100000
- date-end: 2024-09-21
- time-end: 03:33:47.657600000
- obs_id: A13_037T01_9000006436
- exposure: 5228.06493318
- 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_48578cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48578cztM0_level2_quad_clean.evt
|
| Size (bytes) | 553,150,080 | 99,167,040 |
| Size | 527.5 MB
| 94.6 MB
|
| Events in quadrant A | 6,635,352 | 673,957 |
| Events in quadrant B | 3,784,737 | 689,831 |
| Events in quadrant C | 2,659,569 | 689,593 |
| Events in quadrant D | 6,903,645 | 505,873 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24143 | 4 |
| B | 0 | 15893 | 2 |
| C | 0 | 12893 | 2 |
| D | 0 | 25301 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6352 | 219 | 3.447733% |
| B | 6352 | 360 | 5.667506% |
| C | 6352 | 8 | 0.125945% |
| D | 6352 | 1267 | 19.946474% |
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 | 7507 | 6353 | 92 | 92 | 1.23% | 1.45% |  |
| B | 7507 | 6353 | 217 | 217 | 2.89% | 3.42% |  |
| C | 7507 | 6353 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7507 | 6353 | 1273 | 1273 | 16.96% | 20.04% |  |
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 | 3942037 | 27869.99 | 683 | 670 | 141.4 |
| A | 0 | 31 | 28572 | 197.3 | 683 | 670 | 141.4 |
| A | 13 | 248 | 27944 | 192.86 | 683 | 670 | 141.4 |
| B | 12 | 16 | 991723 | 7372.69 | 681 | 658 | 134.4 |
| B | 5 | 255 | 66189 | 487.5 | 681 | 658 | 134.4 |
| B | 0 | 183 | 20946 | 150.93 | 681 | 658 | 134.4 |
| C | 13 | 61 | 4363 | 22.69 | 681 | 684 | 162.1 |
| C | 12 | 250 | 2564 | 11.6 | 681 | 684 | 162.1 |
| C | 14 | 67 | 2278 | 9.83 | 681 | 684 | 162.1 |
| D | 2 | 165 | 4376400 | 28695.68 | 607 | 587 | 152.5 |
| D | 13 | 171 | 103711 | 676.27 | 607 | 587 | 152.5 |
| D | 5 | 171 | 38079 | 245.86 | 607 | 587 | 152.5 |
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 |  |