Observation information
- date-obs: 2024-09-19
- time-obs: 06:03:59.794600000
- date-end: 2024-09-19
- time-end: 08:07:09.789400000
- obs_id: A13_037T01_9000006436
- exposure: 6146.34361869
- 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_48551cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48551cztM0_level2_quad_clean.evt
|
| Size (bytes) | 420,857,280 | 101,142,720 |
| Size | 401.4 MB
| 96.5 MB
|
| Events in quadrant A | 6,399,819 | 643,924 |
| Events in quadrant B | 2,998,826 | 686,224 |
| Events in quadrant C | 2,792,520 | 667,567 |
| Events in quadrant D | 2,875,062 | 605,498 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24308 | 669 |
| B | 0 | 14187 | 237 |
| C | 0 | 13833 | 231 |
| D | 0 | 14143 | 216 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 6 |
| B | 0 | 136 | 4 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6545 | 294 | 4.491979% |
| B | 6601 | 207 | 3.135889% |
| C | 6603 | 95 | 1.438740% |
| D | 6611 | 115 | 1.739525% |
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 | 7390 | 6615 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7390 | 6650 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7390 | 6662 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7390 | 6659 | 4 | 4 | 0.05% | 0.06% |  |
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 | 3617052 | 24452.67 | 704 | 687 | 147.9 |
| A | 13 | 248 | 19035 | 124.06 | 704 | 687 | 147.9 |
| A | 7 | 3 | 14242 | 91.65 | 704 | 687 | 147.9 |
| B | 5 | 255 | 133488 | 929.29 | 715 | 692 | 142.9 |
| B | 0 | 155 | 25717 | 175.12 | 715 | 692 | 142.9 |
| B | 12 | 111 | 18871 | 127.21 | 715 | 692 | 142.9 |
| C | 12 | 250 | 9358 | 51.08 | 710 | 711 | 169.3 |
| C | 14 | 67 | 7488 | 40.04 | 710 | 711 | 169.3 |
| C | 3 | 233 | 6574 | 34.64 | 710 | 711 | 169.3 |
| D | 2 | 249 | 73838 | 414.16 | 706 | 684 | 176.6 |
| D | 12 | 2 | 43070 | 239.97 | 706 | 684 | 176.6 |
| D | 2 | 234 | 31440 | 174.13 | 706 | 684 | 176.6 |
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 |  |