Observation information
- date-obs: 2020-09-18
- time-obs: 15:01:40.299300000
- date-end: 2020-09-19
- time-end: 05:43:22.287400000
- obs_id: A09_044T01_9000003888
- exposure: 11056.5740498
- sourceid: 4U 1705-44
- observer: jitheshthejus
- ra_pnt: 257.227
- dec_pnt: -44.10204
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_044T01_9000003888cztM0_level2.fits
| modeM0/AS1A09_044T01_9000003888cztM0_level2_quad_clean.evt
|
| Size (bytes) | 447,235,200 | 256,023,360 |
| Size | 426.5 MB
| 244.2 MB
|
| Events in quadrant A | 2,849,998 | 1,315,745 |
| Events in quadrant B | 2,558,698 | 1,135,004 |
| Events in quadrant C | 2,809,906 | 1,284,290 |
| Events in quadrant D | 2,327,606 | 1,020,041 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 890 | 0 |
| B | 0 | 890 | 0 |
| C | 0 | 890 | 0 |
| D | 0 | 890 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 99107 | 0 |
| B | 0 | 138765 | 0 |
| C | 0 | 92504 | 0 |
| D | 0 | 154295 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 92 | 0 |
| B | 0 | 92 | 0 |
| C | 0 | 92 | 0 |
| D | 0 | 92 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 43623 | 507 | 1.162231% |
| B | 43623 | 5355 | 12.275634% |
| C | 43623 | 557 | 1.276849% |
| D | 43623 | 4371 | 10.019944% |
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 | 52903 | 43619 | 0 | 0 | 0.00% | 0.00% |  |
| B | 52902 | 43529 | 0 | 0 | 0.00% | 0.00% |  |
| C | 52903 | 43623 | 0 | 0 | 0.00% | 0.00% |  |
| D | 52903 | 43551 | 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 | 0 | 29 | 2289 | 8.95 | 742 | 700 | 177.5 |
| A | 7 | 110 | 2255 | 8.76 | 742 | 700 | 177.5 |
| A | 0 | 30 | 2085 | 7.8 | 742 | 700 | 177.5 |
| B | 2 | 9 | 1992 | 10.06 | 679 | 652 | 133.2 |
| B | 5 | 128 | 1713 | 7.97 | 679 | 652 | 133.2 |
| B | 2 | 8 | 1704 | 7.9 | 679 | 652 | 133.2 |
| C | 12 | 241 | 1891 | 6.36 | 743 | 700 | 187.3 |
| C | 3 | 126 | 1891 | 6.36 | 743 | 700 | 187.3 |
| C | 9 | 209 | 1876 | 6.28 | 743 | 700 | 187.3 |
| D | 10 | 189 | 1664 | 5.97 | 667 | 609 | 176.6 |
| D | 6 | 231 | 1661 | 5.96 | 667 | 609 | 176.6 |
| D | 10 | 113 | 1653 | 5.91 | 667 | 609 | 176.6 |
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 |  |