Observation information
- date-obs: 2017-08-29
- time-obs: 12:34:15.238800000
- date-end: 2017-08-29
- time-end: 14:38:54.239000000
- obs_id: A03_073T01_9000001498
- exposure: 5166.18448313
- sourceid: 4U 1705-44
- observer: sriramou
- ra_pnt: 257.227
- dec_pnt: -44.10204
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_073T01_9000001498_10382cztM0_level2.evt
| modeM0/AS1A03_073T01_9000001498_10382cztM0_level2_quad_clean.evt
|
| Size (bytes) | 546,586,560 | 99,521,280 |
| Size | 521.3 MB
| 94.9 MB
|
| Events in quadrant A | 3,450,835 | 632,973 |
| Events in quadrant B | 3,833,130 | 637,871 |
| Events in quadrant C | 3,275,746 | 642,048 |
| Events in quadrant D | 5,501,888 | 596,084 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15159 | 4 |
| B | 0 | 16135 | 3 |
| C | 0 | 14939 | 3 |
| D | 0 | 21269 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7248 | 99 | 1.365894% |
| B | 7248 | 147 | 2.028146% |
| C | 7248 | 39 | 0.538079% |
| D | 7249 | 279 | 3.848807% |
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 | 7479 | 7250 | 8 | 8 | 0.11% | 0.11% |  |
| B | 7479 | 7250 | 27 | 27 | 0.36% | 0.37% |  |
| C | 7479 | 7250 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7479 | 7250 | 178 | 178 | 2.38% | 2.46% |  |
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 | 5 | 16 | 75947 | 426.41 | 862 | 845 | 176.1 |
| A | 4 | 2 | 33807 | 187.15 | 862 | 845 | 176.1 |
| A | 13 | 251 | 15756 | 84.66 | 862 | 845 | 176.1 |
| B | 4 | 239 | 291099 | 1755.26 | 858 | 836 | 165.4 |
| B | 11 | 51 | 102374 | 614.01 | 858 | 836 | 165.4 |
| B | 0 | 214 | 36795 | 217.45 | 858 | 836 | 165.4 |
| C | 14 | 234 | 13321 | 64.72 | 832 | 837 | 192.9 |
| C | 3 | 254 | 13006 | 63.09 | 832 | 837 | 192.9 |
| C | 13 | 61 | 6411 | 28.9 | 832 | 837 | 192.9 |
| D | 2 | 33 | 808220 | 4060.6 | 819 | 795 | 198.8 |
| D | 1 | 20 | 567652 | 2850.76 | 819 | 795 | 198.8 |
| D | 8 | 195 | 454249 | 2280.45 | 819 | 795 | 198.8 |
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 |  |