Observation information
- date-obs: 2017-07-29
- time-obs: 15:31:29.010100000
- date-end: 2017-07-30
- time-end: 04:47:38.025000000
- obs_id: A02_029T01_9000001416
- exposure: 13192.0447756
- sourceid: 4U 1724-30
- observer: sudip
- ra_pnt: 261.8885
- dec_pnt: -30.80206
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_029T01_9000001416cztM0_level2.fits
| modeM0/AS1A02_029T01_9000001416cztM0_level2_quad_clean.evt
|
| Size (bytes) | 361,085,760 | 263,134,080 |
| Size | 344.4 MB
| 250.9 MB
|
| Events in quadrant A | 2,210,104 | 1,418,993 |
| Events in quadrant B | 2,147,150 | 1,442,024 |
| Events in quadrant C | 2,190,078 | 1,374,990 |
| Events in quadrant D | 1,785,908 | 1,130,299 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 91 | 0 |
| B | 0 | 91 | 0 |
| C | 0 | 89 | 0 |
| D | 0 | 91 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 772 | 0 |
| B | 0 | 776 | 0 |
| C | 0 | 772 | 0 |
| D | 0 | 770 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 87636 | 0 |
| B | 0 | 82387 | 0 |
| C | 0 | 77999 | 0 |
| D | 0 | 111287 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 37881 | 600 | 1.583907% |
| B | 37918 | 466 | 1.228968% |
| C | 37902 | 221 | 0.583083% |
| D | 37763 | 2527 | 6.691735% |
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 | 47769 | 38166 | 0 | 0 | 0.00% | 0.00% |  |
| B | 47769 | 38202 | 0 | 0 | 0.00% | 0.00% |  |
| C | 47768 | 38178 | 0 | 0 | 0.00% | 0.00% |  |
| D | 47768 | 37960 | 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 | 2147 | 11.05 | 574 | 539 | 145.5 |
| A | 7 | 110 | 1829 | 8.87 | 574 | 539 | 145.5 |
| A | 0 | 30 | 1660 | 7.7 | 574 | 539 | 145.5 |
| B | 2 | 9 | 1860 | 11.65 | 567 | 540 | 113.3 |
| B | 14 | 254 | 1486 | 8.35 | 567 | 540 | 113.3 |
| B | 3 | 17 | 1421 | 7.77 | 567 | 540 | 113.3 |
| C | 1 | 80 | 1632 | 7.16 | 578 | 537 | 152.8 |
| C | 1 | 81 | 1574 | 6.79 | 578 | 537 | 152.8 |
| C | 12 | 241 | 1499 | 6.29 | 578 | 537 | 152.8 |
| D | 6 | 231 | 1335 | 6.35 | 509 | 462 | 137.4 |
| D | 1 | 19 | 1260 | 5.81 | 509 | 462 | 137.4 |
| D | 1 | 3 | 1242 | 5.68 | 509 | 462 | 137.4 |
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 |  |