Observation information
- date-obs: 2017-01-20
- time-obs: 01:48:16.332600000
- date-end: 2017-01-20
- time-end: 04:01:50.037700000
- obs_id: A02_090T01_9000000970
- exposure: 3327.36253908
- sourceid: Crab
- observer: tanmoy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_090T01_9000000970_07105cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000970_07105cztM0_level2_quad_clean.evt
|
| Size (bytes) | 454,587,840 | 82,368,000 |
| Size | 433.5 MB
| 78.6 MB
|
| Events in quadrant A | 3,125,976 | 518,063 |
| Events in quadrant B | 3,371,794 | 529,227 |
| Events in quadrant C | 3,135,302 | 512,183 |
| Events in quadrant D | 3,691,490 | 480,336 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13399 | 3 |
| B | 0 | 14123 | 2 |
| C | 0 | 13442 | 2 |
| D | 0 | 15137 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6509 | 9 | 0.138270% |
| B | 6509 | 27 | 0.414810% |
| C | 6509 | 23 | 0.353357% |
| D | 6509 | 39 | 0.599170% |
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 | 7759 | 6509 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7759 | 6509 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7759 | 6510 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7759 | 6510 | 24 | 24 | 0.31% | 0.37% |  |
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 | 226 | 7427 | 40.71 | 809 | 793 | 163.0 |
| A | 12 | 194 | 7407 | 40.59 | 809 | 793 | 163.0 |
| A | 3 | 1 | 5909 | 31.39 | 809 | 793 | 163.0 |
| B | 0 | 214 | 87358 | 556.9 | 825 | 810 | 155.4 |
| B | 4 | 81 | 43375 | 273.89 | 825 | 810 | 155.4 |
| B | 0 | 219 | 33396 | 209.68 | 825 | 810 | 155.4 |
| C | 4 | 254 | 38564 | 206.84 | 790 | 799 | 182.6 |
| C | 9 | 68 | 9459 | 47.43 | 790 | 799 | 182.6 |
| C | 13 | 61 | 6242 | 29.81 | 790 | 799 | 182.6 |
| D | 8 | 195 | 258486 | 1346.07 | 780 | 761 | 191.5 |
| D | 1 | 20 | 206509 | 1074.6 | 780 | 761 | 191.5 |
| D | 2 | 216 | 126441 | 656.41 | 780 | 761 | 191.5 |
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 |  |