Observation information
- date-obs: 2024-12-16
- time-obs: 02:34:50.343100000
- date-end: 2024-12-16
- time-end: 04:38:19.319200000
- obs_id: A13_037T01_9000006440
- exposure: 63.0831205249
- 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_9000006440_49855cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49855cztM0_level2_quad_clean.evt
|
| Size (bytes) | 988,845,120 | 57,110,400 |
| Size | 943.0 MB
| 54.5 MB
|
| Events in quadrant A | 6,693,180 | 564,652 |
| Events in quadrant B | 4,023,145 | 669,548 |
| Events in quadrant C | 12,500,273 | 50,823 |
| Events in quadrant D | 12,901,190 | 6,707 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 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 | 24252 | 1 |
| B | 0 | 16140 | 1 |
| C | 0 | 41429 | 1 |
| D | 0 | 42600 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6264 | 816 | 13.026820% |
| B | 6265 | 295 | 4.708699% |
| C | 6265 | 5843 | 93.264166% |
| D | 6264 | 6208 | 99.106003% |
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 | 7409 | 6265 | 658 | 658 | 8.88% | 10.50% |  |
| B | 7410 | 6265 | 101 | 101 | 1.36% | 1.61% |  |
| C | 7409 | 6264 | 3460 | 3460 | 46.70% | 55.24% |  |
| D | 7408 | 6263 | 3805 | 3805 | 51.36% | 60.75% |  |
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 | 3 | 84 | 1734324 | 10153.92 | 687 | 673 | 170.7 |
| A | 3 | 130 | 334114 | 1952.95 | 687 | 673 | 170.7 |
| A | 8 | 38 | 240296 | 1403.46 | 687 | 673 | 170.7 |
| B | 0 | 229 | 364417 | 2459.1 | 698 | 675 | 147.9 |
| B | 4 | 206 | 258784 | 1744.96 | 698 | 675 | 147.9 |
| B | 10 | 43 | 168355 | 1133.61 | 698 | 675 | 147.9 |
| C | 15 | 189 | 2560998 | 48478.2 | 172 | 171 | 52.8 |
| C | 4 | 111 | 2182553 | 41313.98 | 172 | 171 | 52.8 |
| C | 15 | 230 | 1628315 | 30821.88 | 172 | 171 | 52.8 |
| D | 7 | 61 | 6918770 | 120189.46 | 157 | 149 | 57.6 |
| D | 8 | 129 | 1661725 | 28864.7 | 157 | 149 | 57.6 |
| D | 7 | 126 | 879107 | 15269.15 | 157 | 149 | 57.6 |
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 |  |