Observation information
- date-obs: 2024-09-16
- time-obs: 03:20:08.982500000
- date-end: 2024-09-16
- time-end: 05:30:14.982500000
- obs_id: A13_037T01_9000006432
- exposure: 6266.48804665
- 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_9000006432_48505cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006432_48505cztM0_level2_quad_clean.evt
|
| Size (bytes) | 460,834,560 | 108,319,680 |
| Size | 439.5 MB
| 103.3 MB
|
| Events in quadrant A | 6,970,379 | 710,789 |
| Events in quadrant B | 3,081,976 | 755,803 |
| Events in quadrant C | 2,837,896 | 724,306 |
| Events in quadrant D | 3,649,736 | 623,395 |
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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25592 | 2 |
| B | 0 | 13993 | 2 |
| C | 0 | 13600 | 2 |
| D | 0 | 16066 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6677 | 230 | 3.444661% |
| B | 6677 | 99 | 1.482702% |
| C | 6677 | 18 | 0.269582% |
| D | 6676 | 354 | 5.302576% |
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 | 7807 | 6678 | 44 | 44 | 0.56% | 0.66% |  |
| B | 7807 | 6677 | 14 | 14 | 0.18% | 0.21% |  |
| C | 7807 | 6678 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7806 | 6676 | 311 | 311 | 3.98% | 4.66% |  |
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 | 4072519 | 27100.27 | 728 | 713 | 150.2 |
| A | 12 | 189 | 72805 | 479.81 | 728 | 713 | 150.2 |
| A | 7 | 3 | 13214 | 83.2 | 728 | 713 | 150.2 |
| B | 7 | 219 | 105948 | 723.37 | 737 | 714 | 145.5 |
| B | 5 | 255 | 37210 | 250.87 | 737 | 714 | 145.5 |
| B | 12 | 111 | 18468 | 122.04 | 737 | 714 | 145.5 |
| C | 14 | 67 | 16922 | 95.34 | 722 | 727 | 169.9 |
| C | 13 | 61 | 4956 | 24.9 | 722 | 727 | 169.9 |
| C | 2 | 96 | 3403 | 15.75 | 722 | 727 | 169.9 |
| D | 2 | 165 | 781045 | 4530.79 | 691 | 670 | 172.2 |
| D | 12 | 233 | 57588 | 330.46 | 691 | 670 | 172.2 |
| D | 2 | 249 | 45065 | 257.75 | 691 | 670 | 172.2 |
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 |  |