Observation information
- date-obs: 2017-07-13
- time-obs: 02:43:28.649700000
- date-end: 2017-07-13
- time-end: 05:08:24.650000000
- obs_id: A02_198T01_9000001376
- exposure: 3435.5876832
- sourceid: 4U 1538-52
- observer: varun
- ra_pnt: 235.5973
- dec_pnt: -52.386
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_198T01_9000001376_09681cztM0_level2.evt
| modeM0/AS1A02_198T01_9000001376_09681cztM0_level2_quad_clean.evt
|
| Size (bytes) | 426,208,320 | 77,549,760 |
| Size | 406.5 MB
| 74.0 MB
|
| Events in quadrant A | 3,075,472 | 476,366 |
| Events in quadrant B | 3,238,479 | 480,861 |
| Events in quadrant C | 3,058,998 | 483,430 |
| Events in quadrant D | 3,102,854 | 464,356 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13097 | 3 |
| B | 0 | 13515 | 2 |
| C | 0 | 13163 | 2 |
| D | 0 | 13467 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6356 | 42 | 0.660793% |
| B | 6356 | 59 | 0.928257% |
| C | 6356 | 45 | 0.707992% |
| D | 6356 | 60 | 0.943990% |
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 | 8696 | 6358 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8696 | 6358 | 3 | 3 | 0.03% | 0.05% |  |
| C | 8696 | 6358 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8696 | 6358 | 16 | 16 | 0.18% | 0.25% |  |
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 | 1 | 162 | 20732 | 125.85 | 788 | 773 | 158.6 |
| A | 8 | 15 | 8882 | 51.13 | 788 | 773 | 158.6 |
| A | 0 | 226 | 7328 | 41.33 | 788 | 773 | 158.6 |
| B | 0 | 214 | 55205 | 370.8 | 793 | 778 | 146.8 |
| B | 0 | 219 | 30960 | 205.62 | 793 | 778 | 146.8 |
| B | 4 | 173 | 25376 | 167.58 | 793 | 778 | 146.8 |
| C | 9 | 68 | 23484 | 128.63 | 777 | 782 | 176.5 |
| C | 13 | 61 | 5782 | 28.33 | 777 | 782 | 176.5 |
| C | 14 | 67 | 3752 | 16.83 | 777 | 782 | 176.5 |
| D | 2 | 152 | 54523 | 291.89 | 765 | 747 | 184.2 |
| D | 7 | 71 | 46530 | 248.5 | 765 | 747 | 184.2 |
| D | 13 | 104 | 24886 | 131.02 | 765 | 747 | 184.2 |
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 |  |