Observation information
- date-obs: 2024-09-17
- time-obs: 21:14:51.883900000
- date-end: 2024-09-17
- time-end: 23:46:07.877200000
- obs_id: A13_037T01_9000006436
- exposure: 7115.98889625
- 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_48711cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48711cztM0_level2_quad_clean.evt
|
| Size (bytes) | 504,339,840 | 120,268,800 |
| Size | 481.0 MB
| 114.7 MB
|
| Events in quadrant A | 7,977,219 | 757,222 |
| Events in quadrant B | 3,409,334 | 829,985 |
| Events in quadrant C | 3,359,109 | 801,512 |
| Events in quadrant D | 3,330,493 | 721,806 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28806 | 2 |
| B | 0 | 15920 | 2 |
| C | 0 | 15850 | 2 |
| D | 0 | 15981 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7636 | 505 | 6.613410% |
| B | 7637 | 88 | 1.152285% |
| C | 7637 | 27 | 0.353542% |
| D | 7637 | 39 | 0.510672% |
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 | 9076 | 7638 | 201 | 201 | 2.21% | 2.63% |  |
| B | 9077 | 7639 | 6 | 6 | 0.07% | 0.08% |  |
| C | 9077 | 7639 | 6 | 6 | 0.07% | 0.08% |  |
| D | 9077 | 7639 | 13 | 13 | 0.14% | 0.17% |  |
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 | 4414092 | 25568.28 | 823 | 803 | 172.6 |
| A | 13 | 248 | 365572 | 2113.28 | 823 | 803 | 172.6 |
| A | 13 | 254 | 14341 | 78.43 | 823 | 803 | 172.6 |
| B | 12 | 16 | 46194 | 268.79 | 845 | 818 | 168.8 |
| B | 12 | 111 | 21845 | 124.56 | 845 | 818 | 168.8 |
| B | 11 | 111 | 20292 | 115.36 | 845 | 818 | 168.8 |
| C | 12 | 2 | 44324 | 220.0 | 837 | 838 | 197.7 |
| C | 3 | 233 | 33589 | 165.69 | 837 | 838 | 197.7 |
| C | 14 | 254 | 8171 | 37.1 | 837 | 838 | 197.7 |
| D | 5 | 171 | 67811 | 323.35 | 825 | 801 | 207.2 |
| D | 2 | 234 | 38481 | 181.82 | 825 | 801 | 207.2 |
| D | 2 | 233 | 32786 | 154.34 | 825 | 801 | 207.2 |
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 |  |