Observation information
- date-obs: 2018-02-03
- time-obs: 10:48:55.962100000
- date-end: 2018-02-03
- time-end: 12:53:08.959600000
- obs_id: A04_174T01_9000001876
- exposure: 4334.07145078
- 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_12720cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12720cztM0_level2_quad_clean.evt
|
| Size (bytes) | 513,279,360 | 98,124,480 |
| Size | 489.5 MB
| 93.6 MB
|
| Events in quadrant A | 3,393,725 | 660,777 |
| Events in quadrant B | 5,340,587 | 591,934 |
| Events in quadrant C | 3,103,388 | 650,285 |
| Events in quadrant D | 3,277,794 | 627,261 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13930 | 2 |
| B | 0 | 20311 | 1 |
| C | 0 | 13138 | 1 |
| D | 0 | 13736 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6323 | 85 | 1.344299% |
| B | 6323 | 871 | 13.775107% |
| C | 6323 | 57 | 0.901471% |
| D | 6323 | 68 | 1.075439% |
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 | 7454 | 6325 | 8 | 8 | 0.11% | 0.13% |  |
| B | 7454 | 6325 | 553 | 553 | 7.42% | 8.74% |  |
| C | 7454 | 6325 | 3 | 3 | 0.04% | 0.05% |  |
| D | 7454 | 6325 | 12 | 12 | 0.16% | 0.19% |  |
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 | 11 | 29 | 79697 | 468.43 | 826 | 808 | 168.4 |
| A | 15 | 239 | 63250 | 370.77 | 826 | 808 | 168.4 |
| A | 12 | 189 | 46823 | 273.23 | 826 | 808 | 168.4 |
| B | 4 | 239 | 1828183 | 12690.57 | 759 | 742 | 144.0 |
| B | 4 | 206 | 265117 | 1835.94 | 759 | 742 | 144.0 |
| B | 3 | 64 | 163989 | 1133.66 | 759 | 742 | 144.0 |
| C | 14 | 234 | 18411 | 97.05 | 788 | 797 | 181.5 |
| C | 15 | 208 | 13453 | 69.73 | 788 | 797 | 181.5 |
| C | 13 | 61 | 5702 | 27.03 | 788 | 797 | 181.5 |
| D | 1 | 52 | 127590 | 678.99 | 791 | 775 | 186.8 |
| D | 8 | 195 | 55798 | 294.6 | 791 | 775 | 186.8 |
| D | 10 | 199 | 29867 | 155.76 | 791 | 775 | 186.8 |
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 |  |