Observation information
- date-obs: 2018-01-19
- time-obs: 11:59:40.387200000
- date-end: 2018-01-19
- time-end: 15:51:46.398000000
- obs_id: A04_174T01_9000001850
- exposure: 8658.65271166
- 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_12499cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12499cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,079,910,720 | 182,975,040 |
| Size | 1.0 GB
| 174.5 MB
|
| Events in quadrant A | 7,239,575 | 1,189,180 |
| Events in quadrant B | 7,645,392 | 1,196,236 |
| Events in quadrant C | 5,910,939 | 1,208,061 |
| Events in quadrant D | 11,054,190 | 1,073,068 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29741 | 3 |
| B | 0 | 30601 | 2 |
| C | 0 | 25841 | 2 |
| D | 0 | 41176 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 260 | 0 |
| B | 0 | 260 | 0 |
| C | 0 | 260 | 0 |
| D | 0 | 260 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 12651 | 205 | 1.620425% |
| B | 12651 | 397 | 3.138092% |
| C | 12651 | 88 | 0.695597% |
| D | 12651 | 1817 | 14.362501% |
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 | 13927 | 12652 | 6 | 6 | 0.04% | 0.05% |  |
| B | 13927 | 12653 | 179 | 179 | 1.29% | 1.41% |  |
| C | 13927 | 12654 | 6 | 6 | 0.04% | 0.05% |  |
| D | 13927 | 12653 | 1350 | 1350 | 9.69% | 10.67% |  |
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 | 1 | 162 | 355038 | 1125.08 | 1541 | 1511 | 314.2 |
| A | 1 | 178 | 208581 | 658.99 | 1541 | 1511 | 314.2 |
| A | 1 | 161 | 178511 | 563.3 | 1541 | 1511 | 314.2 |
| B | 4 | 239 | 1417276 | 4839.64 | 1533 | 1499 | 292.5 |
| B | 0 | 214 | 71950 | 240.83 | 1533 | 1499 | 292.5 |
| B | 3 | 209 | 53968 | 179.36 | 1533 | 1499 | 292.5 |
| C | 14 | 234 | 50288 | 140.23 | 1504 | 1517 | 347.8 |
| C | 13 | 61 | 10847 | 26.83 | 1504 | 1517 | 347.8 |
| C | 3 | 202 | 3619 | 6.04 | 1504 | 1517 | 347.8 |
| D | 1 | 52 | 5120024 | 15004.17 | 1398 | 1359 | 341.1 |
| D | 8 | 195 | 233688 | 681.02 | 1398 | 1359 | 341.1 |
| D | 2 | 14 | 189984 | 552.91 | 1398 | 1359 | 341.1 |
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 |  |