Observation information
- date-obs: 2024-06-18
- time-obs: 23:47:29.187100000
- date-end: 2024-06-19
- time-end: 01:59:22.181200000
- obs_id: A13_037T01_9000006300
- exposure: 6167.80082941
- 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_9000006300_47183cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006300_47183cztM0_level2_quad_clean.evt
|
| Size (bytes) | 455,742,720 | 107,697,600 |
| Size | 434.6 MB
| 102.7 MB
|
| Events in quadrant A | 6,443,707 | 710,479 |
| Events in quadrant B | 3,318,223 | 752,716 |
| Events in quadrant C | 3,152,479 | 704,939 |
| Events in quadrant D | 3,454,677 | 642,398 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23308 | 2 |
| B | 0 | 14340 | 2 |
| C | 0 | 14223 | 2 |
| D | 0 | 15004 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6456 | 237 | 3.671004% |
| B | 6456 | 81 | 1.254647% |
| C | 6456 | 57 | 0.882900% |
| D | 6456 | 93 | 1.440520% |
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 | 7616 | 6456 | 91 | 91 | 1.19% | 1.41% |  |
| B | 7616 | 6456 | 24 | 24 | 0.32% | 0.37% |  |
| C | 7616 | 6457 | 34 | 34 | 0.45% | 0.53% |  |
| D | 7616 | 6457 | 90 | 90 | 1.18% | 1.39% |  |
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 | 3629885 | 24604.16 | 714 | 699 | 147.5 |
| A | 9 | 191 | 26601 | 175.6 | 714 | 699 | 147.5 |
| A | 13 | 248 | 13422 | 86.26 | 714 | 699 | 147.5 |
| B | 0 | 190 | 186313 | 1301.4 | 725 | 702 | 142.6 |
| B | 0 | 200 | 101677 | 707.98 | 725 | 702 | 142.6 |
| B | 5 | 172 | 40876 | 281.68 | 725 | 702 | 142.6 |
| C | 15 | 208 | 310937 | 1868.11 | 709 | 712 | 166.1 |
| C | 14 | 254 | 61340 | 365.09 | 709 | 712 | 166.1 |
| C | 8 | 222 | 8473 | 46.74 | 709 | 712 | 166.1 |
| D | 1 | 47 | 375930 | 2140.24 | 699 | 677 | 175.3 |
| D | 5 | 171 | 156990 | 891.53 | 699 | 677 | 175.3 |
| D | 12 | 218 | 103011 | 583.66 | 699 | 677 | 175.3 |
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 |  |