Observation information
- date-obs: 2018-03-15
- time-obs: 13:44:55.810300000
- date-end: 2018-03-15
- time-end: 14:27:02.810700000
- obs_id: T02_014T01_9000001980
- exposure: 1558.09778404
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_014T01_9000001980_13313cztM0_level2.evt
| modeM0/AS1T02_014T01_9000001980_13313cztM0_level2_quad_clean.evt
|
| Size (bytes) | 128,655,360 | 37,304,640 |
| Size | 122.7 MB
| 35.6 MB
|
| Events in quadrant A | 1,090,076 | 256,063 |
| Events in quadrant B | 950,861 | 261,756 |
| Events in quadrant C | 844,761 | 253,985 |
| Events in quadrant D | 901,310 | 241,556 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32 | 0 |
| B | 0 | 32 | 0 |
| C | 0 | 32 | 0 |
| D | 0 | 32 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4409 | 2 |
| B | 0 | 3896 | 1 |
| C | 0 | 3460 | 1 |
| D | 0 | 3635 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1569 | 20 | 1.274697% |
| B | 1569 | 22 | 1.402167% |
| C | 1569 | 6 | 0.382409% |
| D | 1569 | 17 | 1.083493% |
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 | 1570 | 1570 | 2 | 2 | 0.13% | 0.13% |  |
| B | 1570 | 1570 | 8 | 8 | 0.51% | 0.51% |  |
| C | 1570 | 1570 | 1 | 1 | 0.06% | 0.06% |  |
| D | 1570 | 1570 | 4 | 4 | 0.25% | 0.25% |  |
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 | 8 | 15 | 211158 | 4514.63 | 224 | 220 | 46.7 |
| A | 1 | 162 | 6388 | 132.01 | 224 | 220 | 46.7 |
| A | 15 | 69 | 4311 | 87.56 | 224 | 220 | 46.7 |
| B | 0 | 189 | 19577 | 445.7 | 222 | 218 | 43.4 |
| B | 10 | 246 | 18275 | 415.72 | 222 | 218 | 43.4 |
| B | 3 | 64 | 15672 | 355.79 | 222 | 218 | 43.4 |
| C | 15 | 208 | 10040 | 195.64 | 212 | 214 | 50.2 |
| C | 8 | 128 | 3424 | 63.91 | 212 | 214 | 50.2 |
| C | 8 | 112 | 1929 | 34.15 | 212 | 214 | 50.2 |
| D | 8 | 195 | 35355 | 674.33 | 214 | 209 | 52.1 |
| D | 2 | 136 | 20547 | 390.22 | 214 | 209 | 52.1 |
| D | 12 | 222 | 15989 | 302.76 | 214 | 209 | 52.1 |
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 |  |