Observation information
- date-obs: 2018-02-01
- time-obs: 09:51:35.994700000
- date-end: 2018-02-01
- time-end: 12:07:38.991500000
- obs_id: A04_174T01_9000001876
- exposure: 4117.76859094
- 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_12689cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12689cztM0_level2_quad_clean.evt
|
| Size (bytes) | 534,864,960 | 90,342,720 |
| Size | 510.1 MB
| 86.2 MB
|
| Events in quadrant A | 3,311,433 | 600,519 |
| Events in quadrant B | 5,465,101 | 510,816 |
| Events in quadrant C | 3,169,343 | 596,325 |
| Events in quadrant D | 3,801,872 | 564,988 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13849 | 3 |
| B | 0 | 20405 | 2 |
| C | 0 | 13607 | 2 |
| D | 0 | 15541 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6643 | 66 | 0.993527% |
| B | 6643 | 945 | 14.225501% |
| C | 6643 | 45 | 0.677405% |
| D | 6643 | 109 | 1.640825% |
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 | 7653 | 6643 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7653 | 6643 | 733 | 733 | 9.58% | 11.03% |  |
| C | 7653 | 6643 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7654 | 6644 | 64 | 64 | 0.84% | 0.96% |  |
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 | 8 | 15 | 51802 | 295.22 | 840 | 824 | 172.7 |
| A | 12 | 189 | 27689 | 155.58 | 840 | 824 | 172.7 |
| A | 0 | 226 | 7475 | 38.52 | 840 | 824 | 172.7 |
| B | 4 | 239 | 2321649 | 15922.69 | 765 | 747 | 145.8 |
| B | 11 | 51 | 73229 | 497.27 | 765 | 747 | 145.8 |
| B | 0 | 214 | 49599 | 335.15 | 765 | 747 | 145.8 |
| C | 15 | 208 | 8969 | 43.18 | 809 | 815 | 188.8 |
| C | 13 | 61 | 5911 | 26.98 | 809 | 815 | 188.8 |
| C | 8 | 222 | 3584 | 14.66 | 809 | 815 | 188.8 |
| D | 1 | 52 | 462177 | 2177.29 | 796 | 784 | 211.9 |
| D | 13 | 104 | 181087 | 850.84 | 796 | 784 | 211.9 |
| D | 10 | 199 | 30082 | 138.26 | 796 | 784 | 211.9 |
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 |  |