Observation information
- date-obs: 2018-04-05
- time-obs: 00:00:00.939500000
- date-end: 2018-04-05
- time-end: 06:32:37.931200000
- obs_id: G08_044T01_9000002014
- exposure: 6448.64376929
- 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_9000002014cztM0_level2.fits
| modeM0/AS1G08_044T01_9000002014cztM0_level2_quad_clean.evt
|
| Size (bytes) | 187,151,040 | 130,731,840 |
| Size | 178.5 MB
| 124.7 MB
|
| Events in quadrant A | 1,166,468 | 705,691 |
| Events in quadrant B | 1,105,104 | 687,207 |
| Events in quadrant C | 1,126,762 | 652,773 |
| Events in quadrant D | 968,802 | 610,909 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 386 | 0 |
| B | 0 | 386 | 0 |
| C | 0 | 386 | 0 |
| D | 0 | 386 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 46 | 0 |
| B | 0 | 46 | 0 |
| C | 0 | 46 | 0 |
| D | 0 | 46 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 39594 | 0 |
| B | 0 | 44566 | 0 |
| C | 0 | 39497 | 0 |
| D | 0 | 47212 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18883 | 150 | 0.794365% |
| B | 18883 | 363 | 1.922364% |
| C | 18883 | 87 | 0.460732% |
| D | 18883 | 363 | 1.922364% |
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 | 23558 | 18882 | 0 | 0 | 0.00% | 0.00% |  |
| B | 23558 | 18882 | 0 | 0 | 0.00% | 0.00% |  |
| C | 23558 | 18883 | 0 | 0 | 0.00% | 0.00% |  |
| D | 23557 | 18881 | 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 | 1125 | 10.99 | 303 | 284 | 76.5 |
| A | 7 | 110 | 998 | 9.33 | 303 | 284 | 76.5 |
| A | 9 | 19 | 837 | 7.22 | 303 | 284 | 76.5 |
| B | 2 | 9 | 925 | 10.97 | 291 | 278 | 59.0 |
| B | 5 | 232 | 746 | 7.94 | 291 | 278 | 59.0 |
| B | 5 | 128 | 724 | 7.56 | 291 | 278 | 59.0 |
| C | 1 | 81 | 839 | 7.18 | 297 | 277 | 78.3 |
| C | 1 | 80 | 798 | 6.66 | 297 | 277 | 78.3 |
| C | 1 | 65 | 798 | 6.66 | 297 | 277 | 78.3 |
| D | 6 | 231 | 720 | 6.23 | 277 | 253 | 74.9 |
| D | 3 | 14 | 711 | 6.11 | 277 | 253 | 74.9 |
| D | 10 | 189 | 693 | 5.87 | 277 | 253 | 74.9 |
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 |  |