Observation information
- date-obs: 2024-09-23
- time-obs: 10:45:47.491700000
- date-end: 2024-09-23
- time-end: 16:28:40.476600000
- obs_id: A13_037T01_9000006436
- exposure: 12886.3565111
- 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_48615cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48615cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,889,593,920 | 267,603,840 |
| Size | 1.8 GB
| 255.2 MB
|
| Events in quadrant A | 20,300,425 | 1,876,981 |
| Events in quadrant B | 25,178,383 | 1,349,178 |
| Events in quadrant C | 8,285,322 | 1,943,394 |
| Events in quadrant D | 14,690,791 | 1,600,186 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 74702 | 3 |
| B | 0 | 88381 | 3 |
| C | 0 | 39768 | 3 |
| D | 0 | 56947 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 390 | 0 |
| B | 0 | 390 | 0 |
| C | 0 | 390 | 0 |
| D | 0 | 390 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19333 | 1152 | 5.958723% |
| B | 19333 | 6874 | 35.555785% |
| C | 19334 | 252 | 1.303403% |
| D | 19334 | 1804 | 9.330713% |
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 | 20573 | 19336 | 296 | 296 | 1.44% | 1.53% |  |
| B | 20573 | 19335 | 5096 | 5096 | 24.77% | 26.36% |  |
| C | 20574 | 19337 | 7 | 7 | 0.03% | 0.04% |  |
| D | 20574 | 19337 | 1209 | 1209 | 5.88% | 6.25% |  |
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 | 11111653 | 25733.73 | 2072 | 2020 | 431.7 |
| A | 13 | 248 | 1022788 | 2364.45 | 2072 | 2020 | 431.7 |
| A | 12 | 189 | 80282 | 181.28 | 2072 | 2020 | 431.7 |
| B | 12 | 16 | 16825111 | 49408.91 | 1730 | 1672 | 340.5 |
| B | 12 | 18 | 1217708 | 3571.39 | 1730 | 1672 | 340.5 |
| B | 0 | 198 | 67049 | 192.01 | 1730 | 1672 | 340.5 |
| C | 12 | 250 | 89989 | 179.24 | 2082 | 2087 | 490.4 |
| C | 12 | 249 | 37022 | 71.23 | 2082 | 2087 | 490.4 |
| C | 14 | 254 | 28482 | 53.82 | 2082 | 2087 | 490.4 |
| D | 2 | 165 | 6061073 | 11888.39 | 2014 | 1946 | 509.7 |
| D | 10 | 199 | 285644 | 556.63 | 2014 | 1946 | 509.7 |
| D | 15 | 127 | 192942 | 374.75 | 2014 | 1946 | 509.7 |
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 |  |