Observation information
- date-obs: 2024-05-01
- time-obs: 04:16:59.355600000
- date-end: 2024-05-01
- time-end: 06:21:44.348200000
- obs_id: A13_037T01_9000006212
- exposure: 6073.85972041
- 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_9000006212_46459cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006212_46459cztM0_level2_quad_clean.evt
|
| Size (bytes) | 437,748,480 | 108,175,680 |
| Size | 417.5 MB
| 103.2 MB
|
| Events in quadrant A | 5,929,203 | 723,307 |
| Events in quadrant B | 3,106,512 | 755,069 |
| Events in quadrant C | 2,840,543 | 711,838 |
| Events in quadrant D | 3,838,543 | 645,721 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21923 | 1 |
| B | 0 | 13501 | 1 |
| C | 0 | 13049 | 1 |
| D | 0 | 15863 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6300 | 149 | 2.365079% |
| B | 6301 | 62 | 0.983971% |
| C | 6301 | 27 | 0.428503% |
| D | 6301 | 89 | 1.412474% |
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 | 7485 | 6301 | 6 | 6 | 0.08% | 0.10% |  |
| B | 7486 | 6302 | 14 | 14 | 0.19% | 0.22% |  |
| C | 7486 | 6302 | 6 | 6 | 0.08% | 0.10% |  |
| D | 7486 | 6302 | 63 | 63 | 0.84% | 1.00% |  |
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 | 3085441 | 20856.59 | 714 | 699 | 147.9 |
| A | 0 | 243 | 18209 | 118.39 | 714 | 699 | 147.9 |
| A | 2 | 79 | 15751 | 101.77 | 714 | 699 | 147.9 |
| B | 0 | 190 | 106959 | 763.18 | 717 | 697 | 139.2 |
| B | 15 | 201 | 51455 | 364.55 | 717 | 697 | 139.2 |
| B | 5 | 32 | 29744 | 208.62 | 717 | 697 | 139.2 |
| C | 3 | 233 | 37751 | 228.55 | 696 | 700 | 162.1 |
| C | 14 | 254 | 32165 | 194.09 | 696 | 700 | 162.1 |
| C | 9 | 54 | 25234 | 151.34 | 696 | 700 | 162.1 |
| D | 1 | 52 | 442579 | 2577.13 | 691 | 670 | 171.5 |
| D | 8 | 176 | 378453 | 2203.16 | 691 | 670 | 171.5 |
| D | 2 | 249 | 147189 | 854.47 | 691 | 670 | 171.5 |
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 |  |