Observation information
- date-obs: 2018-02-01
- time-obs: 17:09:40.988600000
- date-end: 2018-02-01
- time-end: 19:06:42.988300000
- obs_id: A04_174T01_9000001876
- exposure: 3552.79818583
- 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_12694cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12694cztM0_level2_quad_clean.evt
|
| Size (bytes) | 500,253,120 | 84,585,600 |
| Size | 477.1 MB
| 80.7 MB
|
| Events in quadrant A | 2,874,469 | 588,995 |
| Events in quadrant B | 5,546,050 | 451,978 |
| Events in quadrant C | 2,831,240 | 572,697 |
| Events in quadrant D | 3,510,636 | 548,179 |
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 | 12028 | 2 |
| B | 0 | 20043 | 1 |
| C | 0 | 12002 | 1 |
| D | 0 | 14068 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5702 | 67 | 1.175026% |
| B | 5702 | 1237 | 21.694142% |
| C | 5702 | 54 | 0.947036% |
| D | 5702 | 150 | 2.630656% |
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 | 7023 | 5704 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7023 | 5704 | 986 | 986 | 14.04% | 17.29% |  |
| C | 7023 | 5704 | 13 | 13 | 0.19% | 0.23% |  |
| D | 7023 | 5704 | 86 | 86 | 1.22% | 1.51% |  |
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 | 20510 | 133.65 | 731 | 717 | 148.1 |
| A | 12 | 189 | 19452 | 126.51 | 731 | 717 | 148.1 |
| A | 7 | 16 | 11865 | 75.28 | 731 | 717 | 148.1 |
| B | 4 | 239 | 2869083 | 24546.62 | 621 | 608 | 116.9 |
| B | 3 | 64 | 87911 | 747.08 | 621 | 608 | 116.9 |
| B | 0 | 85 | 68992 | 585.19 | 621 | 608 | 116.9 |
| C | 15 | 208 | 89267 | 546.72 | 701 | 708 | 162.0 |
| C | 1 | 5 | 6099 | 33.28 | 701 | 708 | 162.0 |
| C | 13 | 61 | 5321 | 28.48 | 701 | 708 | 162.0 |
| D | 1 | 52 | 707934 | 4174.33 | 700 | 682 | 169.4 |
| D | 10 | 157 | 57840 | 337.36 | 700 | 682 | 169.4 |
| D | 8 | 195 | 54233 | 316.07 | 700 | 682 | 169.4 |
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 |  |