Observation information
- date-obs: 2018-02-01
- time-obs: 08:11:35.995600000
- date-end: 2018-02-01
- time-end: 10:24:28.993300000
- obs_id: A04_174T01_9000001876
- exposure: 3769.51070847
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001876_12688cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12688cztM0_level2_quad_clean.evt
|
| Size (bytes) | 549,840,960 | 83,001,600 |
| Size | 524.4 MB
| 79.2 MB
|
| Events in quadrant A | 3,329,617 | 538,153 |
| Events in quadrant B | 6,025,266 | 442,014 |
| Events in quadrant C | 3,236,639 | 539,083 |
| Events in quadrant D | 3,593,088 | 513,873 |
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 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14103 | 3 |
| B | 0 | 22099 | 2 |
| C | 0 | 14045 | 2 |
| D | 0 | 15246 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6893 | 65 | 0.942986% |
| B | 6893 | 1119 | 16.233860% |
| C | 6893 | 57 | 0.826926% |
| D | 6893 | 80 | 1.160598% |
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 | 7743 | 6893 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7743 | 6893 | 922 | 922 | 11.91% | 13.38% |  |
| C | 7743 | 6893 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7743 | 6894 | 42 | 42 | 0.54% | 0.61% |  |
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 | 12 | 189 | 50735 | 287.12 | 848 | 831 | 173.8 |
| A | 8 | 15 | 16850 | 92.16 | 848 | 831 | 173.8 |
| A | 0 | 226 | 7343 | 37.47 | 848 | 831 | 173.8 |
| B | 4 | 239 | 2798540 | 18866.43 | 773 | 755 | 148.3 |
| B | 11 | 51 | 92923 | 621.52 | 773 | 755 | 148.3 |
| B | 0 | 214 | 29375 | 192.99 | 773 | 755 | 148.3 |
| C | 15 | 208 | 18140 | 90.16 | 824 | 831 | 192.0 |
| C | 13 | 61 | 6096 | 27.42 | 824 | 831 | 192.0 |
| C | 8 | 222 | 3354 | 13.14 | 824 | 831 | 192.0 |
| D | 10 | 157 | 181896 | 906.74 | 814 | 796 | 199.7 |
| D | 1 | 52 | 128883 | 641.31 | 814 | 796 | 199.7 |
| D | 13 | 104 | 110738 | 550.46 | 814 | 796 | 199.7 |
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 |  |