Observation information
- date-obs: 2017-07-13
- time-obs: 18:00:06.659400000
- date-end: 2017-07-14
- time-end: 09:48:21.670500000
- obs_id: A03_068T01_9000001380
- exposure: 17052.7674181
- sourceid: 4U 1957+11
- observer: devraj
- ra_pnt: 299.8505
- dec_pnt: 11.70893
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_068T01_9000001380cztM0_level2.fits
| modeM0/AS1A03_068T01_9000001380cztM0_level2_quad_clean.evt
|
| Size (bytes) | 427,325,760 | 324,362,880 |
| Size | 407.5 MB
| 309.3 MB
|
| Events in quadrant A | 2,619,824 | 1,772,157 |
| Events in quadrant B | 2,540,570 | 1,793,741 |
| Events in quadrant C | 2,533,994 | 1,670,028 |
| Events in quadrant D | 2,196,324 | 1,536,141 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 75 | 0 |
| B | 0 | 77 | 0 |
| C | 0 | 80 | 0 |
| D | 0 | 78 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 932 | 0 |
| B | 0 | 934 | 0 |
| C | 0 | 932 | 0 |
| D | 0 | 912 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 91883 | 0 |
| B | 0 | 91489 | 0 |
| C | 0 | 95974 | 0 |
| D | 0 | 102737 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 44456 | 449 | 1.009987% |
| B | 44432 | 559 | 1.258102% |
| C | 44479 | 806 | 1.812091% |
| D | 44037 | 1034 | 2.348026% |
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 | 56896 | 45093 | 0 | 0 | 0.00% | 0.00% |  |
| B | 56896 | 45063 | 0 | 0 | 0.00% | 0.00% |  |
| C | 56896 | 45103 | 0 | 0 | 0.00% | 0.00% |  |
| D | 56896 | 44528 | 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 | 2620 | 11.4 | 681 | 636 | 174.1 |
| A | 7 | 110 | 2095 | 8.38 | 681 | 636 | 174.1 |
| A | 0 | 30 | 1965 | 7.63 | 681 | 636 | 174.1 |
| B | 2 | 9 | 2199 | 11.55 | 667 | 634 | 135.5 |
| B | 5 | 225 | 1696 | 7.84 | 667 | 634 | 135.5 |
| B | 2 | 8 | 1694 | 7.82 | 667 | 634 | 135.5 |
| C | 1 | 80 | 1949 | 7.5 | 669 | 619 | 177.2 |
| C | 1 | 81 | 1897 | 7.21 | 669 | 619 | 177.2 |
| C | 12 | 241 | 1760 | 6.44 | 669 | 619 | 177.2 |
| D | 3 | 14 | 1603 | 6.14 | 624 | 567 | 168.5 |
| D | 7 | 5 | 1569 | 5.94 | 624 | 567 | 168.5 |
| D | 6 | 231 | 1550 | 5.83 | 624 | 567 | 168.5 |
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 |  |