Observation information
- date-obs: 2024-05-17
- time-obs: 06:05:04.467300000
- date-end: 2024-05-17
- time-end: 16:57:00.436400000
- obs_id: A13_037T01_9000006256
- exposure: 21480.1744987
- 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_9000006256_46702cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46702cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,859,941,440 | 354,974,400 |
| Size | 1.7 GB
| 338.5 MB
|
| Events in quadrant A | 24,015,018 | 2,331,171 |
| Events in quadrant B | 12,524,542 | 2,453,378 |
| Events in quadrant C | 12,456,081 | 2,308,247 |
| Events in quadrant D | 18,062,961 | 2,057,061 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 87787 | 7 |
| B | 0 | 53353 | 1 |
| C | 0 | 53891 | 1 |
| D | 0 | 70233 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 466 | 0 |
| B | 0 | 466 | 0 |
| C | 0 | 466 | 0 |
| D | 0 | 466 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 23205 | 1464 | 6.308985% |
| B | 23206 | 661 | 2.848401% |
| C | 23205 | 676 | 2.913165% |
| D | 23206 | 1809 | 7.795398% |
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 | 39116 | 23206 | 864 | 864 | 2.21% | 3.72% |  |
| B | 39117 | 23207 | 170 | 170 | 0.43% | 0.73% |  |
| C | 39116 | 23206 | 528 | 528 | 1.35% | 2.28% |  |
| D | 39116 | 23206 | 1523 | 1523 | 3.89% | 6.56% |  |
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 | 11188088 | 21495.49 | 2487 | 2432 | 520.4 |
| A | 13 | 248 | 2524655 | 4846.96 | 2487 | 2432 | 520.4 |
| A | 15 | 254 | 243747 | 463.74 | 2487 | 2432 | 520.4 |
| B | 15 | 36 | 1103866 | 2250.95 | 2514 | 2437 | 489.3 |
| B | 4 | 171 | 368930 | 748.99 | 2514 | 2437 | 489.3 |
| B | 0 | 198 | 246650 | 499.09 | 2514 | 2437 | 489.3 |
| C | 12 | 2 | 1853672 | 3231.51 | 2446 | 2460 | 572.9 |
| C | 8 | 131 | 654665 | 1138.5 | 2446 | 2460 | 572.9 |
| C | 14 | 254 | 191293 | 329.63 | 2446 | 2460 | 572.9 |
| D | 1 | 52 | 4176321 | 6943.67 | 2403 | 2325 | 601.1 |
| D | 13 | 249 | 1269639 | 2108.25 | 2403 | 2325 | 601.1 |
| D | 2 | 249 | 581887 | 964.13 | 2403 | 2325 | 601.1 |
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 |  |