Observation information
- date-obs: 2018-01-15
- time-obs: 19:11:48.135700000
- date-end: 2018-01-15
- time-end: 21:15:50.138300000
- obs_id: A04_174T01_9000001850
- exposure: 4065.56093911
- 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_9000001850_12443cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12443cztM0_level2_quad_clean.evt
|
| Size (bytes) | 581,397,120 | 91,903,680 |
| Size | 554.5 MB
| 87.6 MB
|
| Events in quadrant A | 5,580,892 | 592,244 |
| Events in quadrant B | 3,857,702 | 596,227 |
| Events in quadrant C | 3,027,391 | 608,185 |
| Events in quadrant D | 4,710,643 | 541,942 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21165 | 2 |
| B | 0 | 15547 | 1 |
| C | 0 | 13205 | 1 |
| D | 0 | 18286 | 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 |
| 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 | 6372 | 222 | 3.483992% |
| B | 6372 | 290 | 4.551161% |
| C | 6372 | 27 | 0.423729% |
| D | 6372 | 527 | 8.270559% |
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 | 7443 | 6373 | 63 | 63 | 0.85% | 0.99% |  |
| B | 7443 | 6373 | 200 | 200 | 2.69% | 3.14% |  |
| C | 7443 | 6373 | 5 | 5 | 0.07% | 0.08% |  |
| D | 7443 | 6373 | 461 | 461 | 6.19% | 7.23% |  |
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 | 23 | 1011852 | 6453.24 | 768 | 755 | 156.7 |
| A | 13 | 251 | 926650 | 5909.44 | 768 | 755 | 156.7 |
| A | 1 | 162 | 197806 | 1257.66 | 768 | 755 | 156.7 |
| B | 4 | 239 | 666105 | 4633.72 | 759 | 743 | 143.6 |
| B | 3 | 64 | 96072 | 663.89 | 759 | 743 | 143.6 |
| B | 3 | 209 | 32837 | 223.51 | 759 | 743 | 143.6 |
| C | 15 | 208 | 74239 | 418.94 | 757 | 764 | 175.4 |
| C | 13 | 61 | 5579 | 27.45 | 757 | 764 | 175.4 |
| C | 8 | 222 | 2134 | 7.81 | 757 | 764 | 175.4 |
| D | 1 | 52 | 1779454 | 10116.97 | 726 | 708 | 175.8 |
| D | 13 | 249 | 80050 | 451.27 | 726 | 708 | 175.8 |
| D | 7 | 71 | 58371 | 327.97 | 726 | 708 | 175.8 |
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 |  |