Observation information
- date-obs: 2024-05-18
- time-obs: 01:02:31.410100000
- date-end: 2024-05-18
- time-end: 03:21:42.402900000
- obs_id: A13_037T01_9000006256
- exposure: 6485.88392222
- 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_9000006256_46709cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46709cztM0_level2_quad_clean.evt
|
| Size (bytes) | 528,727,680 | 111,412,800 |
| Size | 504.2 MB
| 106.3 MB
|
| Events in quadrant A | 6,809,027 | 731,129 |
| Events in quadrant B | 3,705,148 | 773,686 |
| Events in quadrant C | 3,160,332 | 741,484 |
| Events in quadrant D | 5,348,083 | 634,434 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24967 | 2 |
| B | 0 | 16046 | 2 |
| C | 0 | 14849 | 2 |
| D | 0 | 20883 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7078 | 331 | 4.676462% |
| B | 7078 | 159 | 2.246397% |
| C | 7078 | 52 | 0.734671% |
| D | 7078 | 633 | 8.943204% |
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 | 7748 | 7080 | 26 | 26 | 0.34% | 0.37% |  |
| B | 7748 | 7080 | 13 | 13 | 0.17% | 0.18% |  |
| C | 7748 | 7080 | 7 | 7 | 0.09% | 0.10% |  |
| D | 7748 | 7080 | 479 | 479 | 6.18% | 6.77% |  |
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 | 3672421 | 22647.02 | 774 | 757 | 162.1 |
| A | 9 | 191 | 91470 | 559.52 | 774 | 757 | 162.1 |
| A | 13 | 248 | 20751 | 123.32 | 774 | 757 | 162.1 |
| B | 4 | 171 | 342499 | 2184.91 | 790 | 766 | 156.4 |
| B | 0 | 198 | 109445 | 694.85 | 790 | 766 | 156.4 |
| B | 0 | 190 | 52610 | 331.47 | 790 | 766 | 156.4 |
| C | 3 | 233 | 67602 | 363.97 | 777 | 781 | 183.6 |
| C | 14 | 254 | 34578 | 184.09 | 777 | 781 | 183.6 |
| C | 12 | 2 | 26655 | 140.93 | 777 | 781 | 183.6 |
| D | 1 | 52 | 945747 | 5030.22 | 740 | 715 | 187.9 |
| D | 13 | 168 | 935994 | 4978.3 | 740 | 715 | 187.9 |
| D | 13 | 249 | 332015 | 1763.44 | 740 | 715 | 187.9 |
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 |  |