Observation information
- date-obs: 2018-01-16
- time-obs: 01:56:36.146700000
- date-end: 2018-01-16
- time-end: 04:08:29.153000000
- obs_id: A04_174T01_9000001850
- exposure: 3298.14476762
- 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_12448cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12448cztM0_level2_quad_clean.evt
|
| Size (bytes) | 585,293,760 | 83,214,720 |
| Size | 558.2 MB
| 79.4 MB
|
| Events in quadrant A | 6,311,640 | 529,327 |
| Events in quadrant B | 4,406,763 | 513,249 |
| Events in quadrant C | 2,983,940 | 546,276 |
| Events in quadrant D | 3,613,613 | 507,575 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23116 | 3 |
| B | 0 | 16957 | 2 |
| C | 0 | 12562 | 2 |
| D | 0 | 14738 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 19 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6059 | 182 | 3.003796% |
| B | 6059 | 551 | 9.093910% |
| C | 6059 | 15 | 0.247566% |
| D | 6059 | 110 | 1.815481% |
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 | 7395 | 6060 | 10 | 10 | 0.14% | 0.17% |  |
| B | 7395 | 6060 | 427 | 427 | 5.77% | 7.05% |  |
| C | 7395 | 6061 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7395 | 6061 | 87 | 87 | 1.18% | 1.44% |  |
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 | 2427066 | 15391.9 | 771 | 759 | 157.6 |
| A | 1 | 162 | 201723 | 1274.87 | 771 | 759 | 157.6 |
| A | 0 | 226 | 182067 | 1150.17 | 771 | 759 | 157.6 |
| B | 4 | 239 | 1266255 | 8879.66 | 757 | 740 | 142.5 |
| B | 3 | 64 | 65665 | 455.56 | 757 | 740 | 142.5 |
| B | 11 | 51 | 37707 | 259.38 | 757 | 740 | 142.5 |
| C | 12 | 4 | 6202 | 30.9 | 764 | 771 | 175.8 |
| C | 13 | 61 | 5628 | 27.63 | 764 | 771 | 175.8 |
| C | 3 | 202 | 1788 | 5.79 | 764 | 771 | 175.8 |
| D | 1 | 52 | 491259 | 2789.34 | 741 | 724 | 175.9 |
| D | 13 | 104 | 152231 | 861.52 | 741 | 724 | 175.9 |
| D | 13 | 249 | 57680 | 323.87 | 741 | 724 | 175.9 |
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 |  |