Observation information
- date-obs: 2018-08-30
- time-obs: 17:43:11.635900000
- date-end: 2018-08-30
- time-end: 18:28:44.634500000
- obs_id: T02_058T01_9000002338
- exposure: 933.205720648
- sourceid: crab
- observer: chandrasunil
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_058T01_9000002338_15803cztM0_level2.evt
| modeM0/AS1T02_058T01_9000002338_15803cztM0_level2_quad_clean.evt
|
| Size (bytes) | 224,058,240 | 23,538,240 |
| Size | 213.7 MB
| 22.4 MB
|
| Events in quadrant A | 2,288,244 | 131,059 |
| Events in quadrant B | 1,563,030 | 136,786 |
| Events in quadrant C | 1,370,004 | 131,689 |
| Events in quadrant D | 1,388,383 | 128,569 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 52 | 0 |
| B | 0 | 52 | 0 |
| C | 0 | 52 | 0 |
| D | 0 | 52 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8530 | 1 |
| B | 0 | 6403 | 1 |
| C | 0 | 5611 | 1 |
| D | 0 | 5817 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2562 | 319 | 12.451210% |
| B | 2562 | 26 | 1.014832% |
| C | 2562 | 20 | 0.780640% |
| D | 2562 | 8 | 0.312256% |
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 | 2563 | 2563 | 190 | 190 | 7.41% | 7.41% |  |
| B | 2563 | 2563 | 7 | 7 | 0.27% | 0.27% |  |
| C | 2563 | 2563 | 0 | 0 | 0.00% | 0.00% |  |
| D | 2563 | 2563 | 5 | 5 | 0.20% | 0.20% |  |
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 | 15 | 239 | 1007586 | 15272.88 | 318 | 311 | 66.0 |
| A | 10 | 253 | 33825 | 508.16 | 318 | 311 | 66.0 |
| A | 13 | 248 | 21211 | 316.9 | 318 | 311 | 66.0 |
| B | 7 | 220 | 112230 | 1717.35 | 340 | 333 | 65.2 |
| B | 4 | 216 | 45679 | 695.95 | 340 | 333 | 65.2 |
| B | 0 | 229 | 33960 | 516.09 | 340 | 333 | 65.2 |
| C | 14 | 238 | 50869 | 653.7 | 327 | 329 | 77.3 |
| C | 7 | 247 | 35817 | 459.01 | 327 | 329 | 77.3 |
| C | 10 | 22 | 6228 | 76.3 | 327 | 329 | 77.3 |
| D | 1 | 52 | 67679 | 815.77 | 332 | 321 | 82.6 |
| D | 2 | 152 | 28501 | 341.29 | 332 | 321 | 82.6 |
| D | 2 | 234 | 11697 | 137.77 | 332 | 321 | 82.6 |
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 |  |