Observation information
- date-obs: 2018-08-30
- time-obs: 10:22:53.692500000
- date-end: 2018-08-30
- time-end: 18:28:44.634500000
- obs_id: T02_058T01_9000002338
- exposure: 12704.7708731
- 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_9000002338cztM0_level2.fits
| modeM0/AS1T02_058T01_9000002338cztM0_level2_quad_clean.evt
|
| Size (bytes) | 240,952,320 | 247,397,760 |
| Size | 229.8 MB
| 235.9 MB
|
| Events in quadrant A | 1,428,344 | 1,484,522 |
| Events in quadrant B | 1,400,702 | 1,500,418 |
| Events in quadrant C | 1,438,982 | 1,429,346 |
| Events in quadrant D | 1,268,614 | 1,317,699 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 526 | 0 |
| B | 0 | 526 | 0 |
| C | 0 | 526 | 0 |
| D | 0 | 526 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 34 | 0 |
| B | 0 | 34 | 0 |
| C | 0 | 34 | 0 |
| D | 0 | 34 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 61597 | 0 |
| B | 0 | 56794 | 0 |
| C | 0 | 53905 | 0 |
| D | 0 | 53644 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 25576 | 1194 | 4.668439% |
| B | 25577 | 402 | 1.571725% |
| C | 25577 | 383 | 1.497439% |
| D | 25577 | 281 | 1.098643% |
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 | 29152 | 25547 | 0 | 0 | 0.00% | 0.00% |  |
| B | 29152 | 25576 | 0 | 0 | 0.00% | 0.00% |  |
| C | 29152 | 25577 | 0 | 0 | 0.00% | 0.00% |  |
| D | 29152 | 25575 | 0 | 0 | 0.00% | 0.00% |  |
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 | 14 | 188 | 1422 | 11.5 | 370 | 346 | 93.6 |
| A | 0 | 29 | 1384 | 11.09 | 370 | 346 | 93.6 |
| A | 14 | 204 | 1249 | 9.65 | 370 | 346 | 93.6 |
| B | 2 | 9 | 1107 | 9.77 | 370 | 352 | 77.2 |
| B | 3 | 17 | 946 | 7.69 | 370 | 352 | 77.2 |
| B | 14 | 254 | 944 | 7.66 | 370 | 352 | 77.2 |
| C | 12 | 241 | 1031 | 6.75 | 380 | 352 | 100.6 |
| C | 2 | 191 | 994 | 6.38 | 380 | 352 | 100.6 |
| C | 3 | 126 | 975 | 6.19 | 380 | 352 | 100.6 |
| D | 4 | 246 | 1037 | 7.18 | 361 | 328 | 98.8 |
| D | 3 | 14 | 935 | 6.15 | 361 | 328 | 98.8 |
| D | 3 | 31 | 911 | 5.9 | 361 | 328 | 98.8 |
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 |  |