Observation information
- date-obs: 2018-01-15
- time-obs: 11:46:37.134900000
- date-end: 2018-01-15
- time-end: 12:33:05.133400000
- obs_id: A04_174T01_9000001850
- exposure: 607.889612056
- 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_12438cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12438cztM0_level2_quad_clean.evt
|
| Size (bytes) | 307,834,560 | 17,251,200 |
| Size | 293.6 MB
| 16.5 MB
|
| Events in quadrant A | 4,379,943 | 77,022 |
| Events in quadrant B | 1,540,196 | 84,353 |
| Events in quadrant C | 1,537,100 | 83,683 |
| Events in quadrant D | 1,677,600 | 80,455 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14936 | 2 |
| B | 0 | 6249 | 1 |
| C | 0 | 6286 | 1 |
| D | 0 | 6779 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 54 | 0 |
| B | 0 | 54 | 0 |
| C | 0 | 54 | 0 |
| D | 0 | 54 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2743 | 1426 | 51.986876% |
| B | 2743 | 279 | 10.171345% |
| C | 2743 | 196 | 7.145461% |
| D | 2743 | 259 | 9.442217% |
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 | 2789 | 2744 | 663 | 663 | 23.77% | 24.16% |  |
| B | 2789 | 2744 | 3 | 3 | 0.11% | 0.11% |  |
| C | 2789 | 2745 | 18 | 18 | 0.65% | 0.66% |  |
| D | 2789 | 2744 | 54 | 54 | 1.94% | 1.97% |  |
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 | 2639869 | 37434.07 | 330 | 322 | 70.5 |
| A | 0 | 226 | 189105 | 2677.32 | 330 | 322 | 70.5 |
| A | 13 | 251 | 148623 | 2103.21 | 330 | 322 | 70.5 |
| B | 3 | 64 | 35621 | 477.78 | 366 | 355 | 73.8 |
| B | 0 | 187 | 26410 | 352.99 | 366 | 355 | 73.8 |
| B | 4 | 239 | 18074 | 240.06 | 366 | 355 | 73.8 |
| C | 15 | 208 | 92320 | 1075.78 | 362 | 362 | 85.5 |
| C | 14 | 234 | 29089 | 336.07 | 362 | 362 | 85.5 |
| C | 13 | 61 | 2612 | 26.32 | 362 | 362 | 85.5 |
| D | 1 | 52 | 139672 | 1598.11 | 355 | 343 | 87.2 |
| D | 7 | 80 | 83775 | 956.97 | 355 | 343 | 87.2 |
| D | 13 | 104 | 48415 | 551.39 | 355 | 343 | 87.2 |
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 |  |