Observation information
- date-obs: 2018-02-02
- time-obs: 17:31:39.972900000
- date-end: 2018-02-02
- time-end: 19:29:06.973100000
- obs_id: A04_174T01_9000001876
- exposure: 3477.10275505
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001876_12709cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12709cztM0_level2_quad_clean.evt
|
| Size (bytes) | 633,562,560 | 81,129,600 |
| Size | 604.2 MB
| 77.4 MB
|
| Events in quadrant A | 2,967,555 | 568,979 |
| Events in quadrant B | 5,447,691 | 462,556 |
| Events in quadrant C | 2,824,375 | 555,061 |
| Events in quadrant D | 7,555,767 | 464,121 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12337 | 2 |
| B | 0 | 19935 | 1 |
| C | 0 | 12104 | 1 |
| D | 0 | 26418 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5802 | 96 | 1.654602% |
| B | 5802 | 1106 | 19.062392% |
| C | 5802 | 56 | 0.965184% |
| D | 5802 | 1328 | 22.888659% |
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 | 7048 | 5804 | 12 | 12 | 0.17% | 0.21% |  |
| B | 7048 | 5804 | 915 | 915 | 12.98% | 15.76% |  |
| C | 7048 | 5804 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7048 | 5804 | 1441 | 1441 | 20.45% | 24.83% |  |
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 | 15 | 174 | 59223 | 391.52 | 738 | 723 | 149.4 |
| A | 15 | 239 | 32937 | 215.6 | 738 | 723 | 149.4 |
| A | 12 | 189 | 20881 | 134.91 | 738 | 723 | 149.4 |
| B | 4 | 239 | 2760677 | 22181.22 | 658 | 644 | 124.4 |
| B | 3 | 209 | 37721 | 297.97 | 658 | 644 | 124.4 |
| B | 4 | 81 | 20559 | 160.05 | 658 | 644 | 124.4 |
| C | 15 | 208 | 42089 | 249.47 | 713 | 720 | 165.8 |
| C | 13 | 61 | 5172 | 26.84 | 713 | 720 | 165.8 |
| C | 8 | 222 | 2799 | 12.53 | 713 | 720 | 165.8 |
| D | 1 | 52 | 4707346 | 26900.66 | 654 | 644 | 175.0 |
| D | 10 | 157 | 260602 | 1485.76 | 654 | 644 | 175.0 |
| D | 13 | 104 | 48969 | 276.2 | 654 | 644 | 175.0 |
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 |  |