Observation information
- date-obs: 2018-03-13
- time-obs: 13:20:25.809800000
- date-end: 2018-03-13
- time-end: 15:23:54.810400000
- obs_id: T02_013T01_9000001976
- exposure: 3826.42065219
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_013T01_9000001976_13284cztM0_level2.evt
| modeM0/AS1T02_013T01_9000001976_13284cztM0_level2_quad_clean.evt
|
| Size (bytes) | 644,932,800 | 87,445,440 |
| Size | 615.1 MB
| 83.4 MB
|
| Events in quadrant A | 3,101,070 | 655,833 |
| Events in quadrant B | 8,425,693 | 305,313 |
| Events in quadrant C | 3,003,769 | 647,017 |
| Events in quadrant D | 4,574,103 | 599,220 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13344 | 2 |
| B | 0 | 29151 | 1 |
| C | 0 | 13100 | 1 |
| D | 0 | 17805 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6294 | 49 | 0.778519% |
| B | 6294 | 3090 | 49.094376% |
| C | 6294 | 31 | 0.492533% |
| D | 6294 | 175 | 2.780426% |
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 | 7410 | 6296 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7410 | 6296 | 1677 | 1677 | 22.63% | 26.64% |  |
| C | 7410 | 6296 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7410 | 6296 | 119 | 119 | 1.61% | 1.89% |  |
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 | 24896 | 150.08 | 785 | 770 | 160.7 |
| A | 8 | 15 | 20113 | 120.33 | 785 | 770 | 160.7 |
| A | 9 | 143 | 16136 | 95.59 | 785 | 770 | 160.7 |
| B | 4 | 239 | 6142017 | 64222.08 | 502 | 491 | 95.6 |
| B | 10 | 245 | 148808 | 1550.95 | 502 | 491 | 95.6 |
| B | 0 | 189 | 43537 | 450.13 | 502 | 491 | 95.6 |
| C | 15 | 208 | 35861 | 199.71 | 760 | 767 | 175.7 |
| C | 13 | 61 | 5584 | 27.41 | 760 | 767 | 175.7 |
| C | 14 | 234 | 2015 | 7.1 | 760 | 767 | 175.7 |
| D | 13 | 104 | 743351 | 4105.74 | 754 | 736 | 180.9 |
| D | 1 | 52 | 560035 | 3092.23 | 754 | 736 | 180.9 |
| D | 8 | 195 | 190963 | 1051.72 | 754 | 736 | 180.9 |
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 |  |