Observation information
- date-obs: 2024-06-28
- time-obs: 15:59:14.617700000
- date-end: 2024-06-28
- time-end: 17:10:08.561500000
- obs_id: A13_037T01_9000006318
- exposure: 2865.19309562
- 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_9000006318_47325cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006318_47325cztM0_level2_quad_clean.evt
|
| Size (bytes) | 293,189,760 | 59,025,600 |
| Size | 279.6 MB
| 56.3 MB
|
| Events in quadrant A | 3,738,171 | 406,961 |
| Events in quadrant B | 1,685,121 | 422,162 |
| Events in quadrant C | 3,069,334 | 334,740 |
| Events in quadrant D | 2,093,998 | 381,597 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13546 | 1 |
| B | 0 | 7381 | 1 |
| C | 0 | 11530 | 1 |
| D | 0 | 8674 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 70 | 0 |
| B | 0 | 70 | 0 |
| C | 0 | 70 | 0 |
| D | 0 | 70 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3410 | 245 | 7.184751% |
| B | 3410 | 47 | 1.378299% |
| C | 3409 | 559 | 16.397771% |
| D | 3409 | 107 | 3.138750% |
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 | 4255 | 3411 | 44 | 44 | 1.03% | 1.29% |  |
| B | 4255 | 3411 | 0 | 0 | 0.00% | 0.00% |  |
| C | 4254 | 3410 | 456 | 456 | 10.72% | 13.37% |  |
| D | 4254 | 3409 | 52 | 52 | 1.22% | 1.53% |  |
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 | 1871547 | 21657.52 | 410 | 401 | 86.4 |
| A | 9 | 191 | 228187 | 2636.5 | 410 | 401 | 86.4 |
| A | 15 | 235 | 49524 | 568.57 | 410 | 401 | 86.4 |
| B | 0 | 198 | 27618 | 329.49 | 409 | 398 | 82.6 |
| B | 5 | 171 | 14070 | 165.49 | 409 | 398 | 82.6 |
| B | 12 | 111 | 10400 | 121.07 | 409 | 398 | 82.6 |
| C | 12 | 2 | 1613399 | 18343.52 | 367 | 369 | 87.9 |
| C | 3 | 233 | 21157 | 236.4 | 367 | 369 | 87.9 |
| C | 13 | 61 | 2357 | 22.61 | 367 | 369 | 87.9 |
| D | 12 | 128 | 145208 | 1407.45 | 405 | 392 | 102.9 |
| D | 10 | 204 | 133124 | 1290.01 | 405 | 392 | 102.9 |
| D | 7 | 38 | 96272 | 931.85 | 405 | 392 | 102.9 |
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 |  |