Observation information
- date-obs: 2017-11-01
- time-obs: 06:34:24.863500000
- date-end: 2017-11-01
- time-end: 11:29:13.853700000
- obs_id: G08_044T01_9000001658
- exposure: 7328.91193396
- sourceid: 4U 1957+115
- observer: jsyadav
- ra_pnt: 299.8509
- dec_pnt: 11.709
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_044T01_9000001658cztM0_level2.fits
| modeM0/AS1G08_044T01_9000001658cztM0_level2_quad_clean.evt
|
| Size (bytes) | 139,829,760 | 125,827,200 |
| Size | 133.4 MB
| 120.0 MB
|
| Events in quadrant A | 843,568 | 760,581 |
| Events in quadrant B | 794,956 | 705,721 |
| Events in quadrant C | 841,566 | 730,684 |
| Events in quadrant D | 667,230 | 527,010 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35913 | 0 |
| B | 0 | 44863 | 0 |
| C | 0 | 32270 | 0 |
| D | 0 | 56530 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 320 | 0 |
| B | 0 | 320 | 0 |
| C | 0 | 320 | 0 |
| D | 0 | 320 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 15740 | 489 | 3.106734% |
| B | 15740 | 1403 | 8.913596% |
| C | 15740 | 132 | 0.838628% |
| D | 15740 | 2582 | 16.404066% |
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 | 17690 | 15731 | 0 | 0 | 0.00% | 0.00% |  |
| B | 17690 | 15714 | 0 | 0 | 0.00% | 0.00% |  |
| C | 17690 | 15740 | 0 | 0 | 0.00% | 0.00% |  |
| D | 17690 | 15689 | 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 | 804 | 10.29 | 219 | 204 | 58.3 |
| A | 7 | 110 | 662 | 7.86 | 219 | 204 | 58.3 |
| A | 0 | 30 | 627 | 7.26 | 219 | 204 | 58.3 |
| B | 2 | 9 | 688 | 11.1 | 209 | 199 | 44.1 |
| B | 3 | 17 | 564 | 8.29 | 209 | 199 | 44.1 |
| B | 2 | 8 | 558 | 8.15 | 209 | 199 | 44.1 |
| C | 12 | 241 | 625 | 7.04 | 222 | 205 | 59.6 |
| C | 9 | 233 | 578 | 6.25 | 222 | 205 | 59.6 |
| C | 7 | 111 | 548 | 5.75 | 222 | 205 | 59.6 |
| D | 3 | 31 | 483 | 5.85 | 190 | 172 | 53.1 |
| D | 1 | 31 | 476 | 5.72 | 190 | 172 | 53.1 |
| D | 6 | 67 | 472 | 5.65 | 190 | 172 | 53.1 |
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 |  |