Observation information
- date-obs: 2018-01-30
- time-obs: 19:44:02.167300000
- date-end: 2018-01-30
- time-end: 21:46:13.016700000
- obs_id: A04_174T01_9000001876
- exposure: 3700.25244977
- 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_12666cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12666cztM0_level2_quad_clean.evt
|
| Size (bytes) | 476,288,640 | 88,110,720 |
| Size | 454.2 MB
| 84.0 MB
|
| Events in quadrant A | 3,333,858 | 588,763 |
| Events in quadrant B | 4,759,784 | 515,223 |
| Events in quadrant C | 2,919,612 | 582,442 |
| Events in quadrant D | 2,997,501 | 556,360 |
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 | 13918 | 2 |
| B | 0 | 18141 | 1 |
| C | 0 | 12617 | 1 |
| D | 0 | 13026 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6096 | 63 | 1.033465% |
| B | 6096 | 794 | 13.024934% |
| C | 6096 | 53 | 0.869423% |
| D | 6096 | 75 | 1.230315% |
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 | 7332 | 6097 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7331 | 6096 | 527 | 527 | 7.19% | 8.65% |  |
| C | 7332 | 6097 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7332 | 6097 | 14 | 14 | 0.19% | 0.23% |  |
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 | 5 | 112 | 342771 | 2186.3 | 767 | 753 | 156.4 |
| A | 12 | 189 | 28901 | 179.93 | 767 | 753 | 156.4 |
| A | 8 | 15 | 8542 | 49.79 | 767 | 753 | 156.4 |
| B | 4 | 239 | 1737772 | 13096.53 | 707 | 691 | 132.6 |
| B | 3 | 64 | 97852 | 732.53 | 707 | 691 | 132.6 |
| B | 11 | 51 | 43219 | 320.64 | 707 | 691 | 132.6 |
| C | 15 | 208 | 6861 | 35.11 | 746 | 755 | 173.9 |
| C | 13 | 61 | 5311 | 26.2 | 746 | 755 | 173.9 |
| C | 8 | 222 | 4261 | 20.16 | 746 | 755 | 173.9 |
| D | 13 | 104 | 56419 | 288.9 | 737 | 723 | 192.8 |
| D | 10 | 199 | 48762 | 249.18 | 737 | 723 | 192.8 |
| D | 1 | 52 | 42097 | 214.61 | 737 | 723 | 192.8 |
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 |  |