Observation information
- date-obs: 2019-10-13
- time-obs: 11:25:24.342300000
- date-end: 2019-10-13
- time-end: 13:32:03.338600000
- obs_id: A07_004T01_9000003230
- exposure: 4596.69109906
- sourceid: SAX J1808.4-3658
- observer: dleahy
- ra_pnt: 272.1147
- dec_pnt: -36.97897
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A07_004T01_9000003230_21852cztM0_level2.evt
| modeM0/AS1A07_004T01_9000003230_21852cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,976,320 | 97,116,480 |
| Size | 447.3 MB
| 92.6 MB
|
| Events in quadrant A | 3,333,281 | 633,954 |
| Events in quadrant B | 3,504,366 | 639,145 |
| Events in quadrant C | 3,135,251 | 613,884 |
| Events in quadrant D | 3,786,511 | 598,553 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14256 | 1 |
| B | 0 | 14604 | 1 |
| C | 0 | 13605 | 1 |
| D | 0 | 15706 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6534 | 93 | 1.423324% |
| B | 6534 | 90 | 1.377410% |
| C | 6534 | 67 | 1.025406% |
| D | 6535 | 108 | 1.652640% |
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 | 7599 | 6534 | 35 | 35 | 0.46% | 0.54% |  |
| B | 7599 | 6534 | 24 | 24 | 0.32% | 0.37% |  |
| C | 7599 | 6535 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7600 | 6536 | 54 | 54 | 0.71% | 0.83% |  |
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 | 2 | 79 | 114851 | 690.76 | 816 | 800 | 165.1 |
| A | 4 | 2 | 63968 | 382.58 | 816 | 800 | 165.1 |
| A | 13 | 254 | 13118 | 74.6 | 816 | 800 | 165.1 |
| B | 3 | 64 | 109009 | 700.59 | 809 | 790 | 154.5 |
| B | 0 | 245 | 103513 | 665.01 | 809 | 790 | 154.5 |
| B | 0 | 230 | 51529 | 328.47 | 809 | 790 | 154.5 |
| C | 14 | 238 | 121527 | 666.49 | 770 | 777 | 181.2 |
| C | 4 | 175 | 10135 | 51.65 | 770 | 777 | 181.2 |
| C | 13 | 61 | 5425 | 25.66 | 770 | 777 | 181.2 |
| D | 1 | 52 | 300005 | 1535.91 | 779 | 761 | 194.8 |
| D | 7 | 238 | 141537 | 722.55 | 779 | 761 | 194.8 |
| D | 13 | 174 | 132631 | 676.84 | 779 | 761 | 194.8 |
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 |  |