Observation information
- date-obs: 2023-05-05
- time-obs: 10:16:51.637500000
- date-end: 2023-05-05
- time-end: 12:38:55.631400000
- obs_id: A12_032T01_9000005598
- exposure: 5020.66937888
- sourceid: 4U 1909+07
- observer: rcorbet
- ra_pnt: 287.7009
- dec_pnt: 7.597694
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A12_032T01_9000005598_41098cztM0_level2.fits
| modeM0/AS1A12_032T01_9000005598_41098cztM0_level2_quad_clean.evt
|
| Size (bytes) | 324,610,560 | 97,122,240 |
| Size | 309.6 MB
| 92.6 MB
|
| Events in quadrant A | 3,085,967 | 672,133 |
| Events in quadrant B | 2,782,814 | 675,009 |
| Events in quadrant C | 2,805,654 | 638,017 |
| Events in quadrant D | 2,937,584 | 592,495 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33 | 0 |
| B | 0 | 33 | 0 |
| C | 0 | 33 | 0 |
| D | 0 | 34 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12261 | 3 |
| B | 0 | 11274 | 2 |
| C | 0 | 11070 | 2 |
| D | 0 | 11923 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5187 | 17 | 0.327742% |
| B | 5187 | 99 | 1.908618% |
| C | 5187 | 42 | 0.809717% |
| D | 5187 | 82 | 1.580875% |
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 | 7279 | 5188 | 4 | 4 | 0.05% | 0.08% |  |
| B | 7279 | 5188 | 42 | 42 | 0.58% | 0.81% |  |
| C | 7279 | 5188 | 38 | 38 | 0.52% | 0.73% |  |
| D | 7279 | 5188 | 54 | 54 | 0.74% | 1.04% |  |
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 | 518331 | 3884.75 | 649 | 639 | 133.3 |
| A | 2 | 79 | 51082 | 378.52 | 649 | 639 | 133.3 |
| A | 13 | 254 | 9556 | 66.91 | 649 | 639 | 133.3 |
| B | 0 | 186 | 253245 | 2059.1 | 635 | 621 | 122.7 |
| B | 5 | 255 | 31151 | 248.84 | 635 | 621 | 122.7 |
| B | 12 | 111 | 14993 | 117.14 | 635 | 621 | 122.7 |
| C | 15 | 214 | 220545 | 1528.36 | 619 | 624 | 143.9 |
| C | 0 | 10 | 141788 | 981.03 | 619 | 624 | 143.9 |
| C | 14 | 254 | 25978 | 176.2 | 619 | 624 | 143.9 |
| D | 2 | 249 | 237749 | 1559.86 | 626 | 607 | 152.0 |
| D | 13 | 249 | 118512 | 775.55 | 626 | 607 | 152.0 |
| D | 9 | 19 | 64287 | 418.87 | 626 | 607 | 152.0 |
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 |  |