Observation information
- date-obs: 2023-05-05
- time-obs: 08:31:51.642100000
- date-end: 2023-05-05
- time-end: 13:15:08.629900000
- obs_id: A12_032T01_9000005598
- exposure: 4020.15184513
- 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_9000005598cztM0_level2.fits
| modeM0/AS1A12_032T01_9000005598cztM0_level2_quad_clean.evt
|
| Size (bytes) | 117,077,760 | 83,335,680 |
| Size | 111.7 MB
| 79.5 MB
|
| Events in quadrant A | 730,668 | 453,000 |
| Events in quadrant B | 690,148 | 449,179 |
| Events in quadrant C | 700,184 | 424,882 |
| Events in quadrant D | 622,652 | 393,179 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 54 | 0 |
| B | 0 | 54 | 0 |
| C | 0 | 54 | 0 |
| D | 0 | 54 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 236 | 0 |
| B | 0 | 236 | 0 |
| C | 0 | 236 | 0 |
| D | 0 | 236 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26387 | 0 |
| B | 0 | 25670 | 0 |
| C | 0 | 24485 | 0 |
| D | 0 | 26127 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11600 | 23 | 0.198276% |
| B | 11600 | 195 | 1.681034% |
| C | 11600 | 80 | 0.689655% |
| D | 11600 | 128 | 1.103448% |
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 | 15723 | 11599 | 0 | 0 | 0.00% | 0.00% |  |
| B | 15723 | 11599 | 0 | 0 | 0.00% | 0.00% |  |
| C | 15723 | 11599 | 0 | 0 | 0.00% | 0.00% |  |
| D | 15723 | 11596 | 0 | 0 | 0.00% | 0.00% |  |
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 | 7 | 110 | 607 | 8.74 | 190 | 180 | 48.9 |
| A | 14 | 95 | 601 | 8.62 | 190 | 180 | 48.9 |
| A | 9 | 19 | 599 | 8.58 | 190 | 180 | 48.9 |
| B | 2 | 9 | 568 | 10.42 | 182 | 175 | 37.7 |
| B | 2 | 8 | 500 | 8.62 | 182 | 175 | 37.7 |
| B | 3 | 80 | 477 | 8.01 | 182 | 175 | 37.7 |
| C | 3 | 203 | 549 | 7.71 | 185 | 174 | 48.6 |
| C | 1 | 81 | 543 | 7.59 | 185 | 174 | 48.6 |
| C | 3 | 202 | 540 | 7.53 | 185 | 174 | 48.6 |
| D | 7 | 3 | 477 | 6.53 | 177 | 163 | 48.1 |
| D | 10 | 189 | 458 | 6.13 | 177 | 163 | 48.1 |
| D | 10 | 113 | 441 | 5.78 | 177 | 163 | 48.1 |
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 |  |