Observation information
- date-obs: 2018-08-09
- time-obs: 14:16:09.410200000
- date-end: 2018-08-09
- time-end: 20:31:00.410400000
- obs_id: G08_036T01_9000002290
- exposure: 10944.5395866
- sourceid: 4U 1820-30
- observer: jsyadav
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_036T01_9000002290cztM0_level2.fits
| modeM0/AS1G08_036T01_9000002290cztM0_level2_quad_clean.evt
|
| Size (bytes) | 190,848,960 | 189,993,600 |
| Size | 182.0 MB
| 181.2 MB
|
| Events in quadrant A | 1,171,716 | 1,149,843 |
| Events in quadrant B | 1,121,738 | 1,142,461 |
| Events in quadrant C | 1,137,312 | 1,096,370 |
| Events in quadrant D | 977,866 | 993,567 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 42247 | 0 |
| B | 0 | 44175 | 0 |
| C | 0 | 42265 | 0 |
| D | 0 | 51516 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 404 | 0 |
| B | 0 | 404 | 0 |
| C | 0 | 404 | 0 |
| D | 0 | 404 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26 | 0 |
| B | 0 | 26 | 0 |
| C | 0 | 26 | 0 |
| D | 0 | 26 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19907 | 320 | 1.607475% |
| B | 19907 | 374 | 1.878736% |
| C | 19907 | 324 | 1.627568% |
| D | 19907 | 772 | 3.878033% |
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 | 22492 | 19904 | 0 | 0 | 0.00% | 0.00% |  |
| B | 22492 | 19908 | 0 | 0 | 0.00% | 0.00% |  |
| C | 22492 | 19906 | 0 | 0 | 0.00% | 0.00% |  |
| D | 22492 | 19869 | 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 | 1103 | 10.6 | 304 | 285 | 77.2 |
| A | 7 | 110 | 953 | 8.65 | 304 | 285 | 77.2 |
| A | 9 | 19 | 909 | 8.08 | 304 | 285 | 77.2 |
| B | 2 | 9 | 847 | 9.27 | 296 | 281 | 61.0 |
| B | 14 | 254 | 789 | 8.32 | 296 | 281 | 61.0 |
| B | 3 | 80 | 753 | 7.73 | 296 | 281 | 61.0 |
| C | 12 | 241 | 800 | 6.62 | 300 | 280 | 78.6 |
| C | 3 | 126 | 787 | 6.45 | 300 | 280 | 78.6 |
| C | 7 | 111 | 776 | 6.31 | 300 | 280 | 78.6 |
| D | 6 | 231 | 741 | 6.36 | 279 | 252 | 76.9 |
| D | 7 | 3 | 712 | 5.98 | 279 | 252 | 76.9 |
| D | 3 | 14 | 710 | 5.95 | 279 | 252 | 76.9 |
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 |  |