Observation information
- date-obs: 2018-01-18
- time-obs: 01:10:43.291100000
- date-end: 2018-01-18
- time-end: 03:12:08.296800000
- obs_id: A04_174T01_9000001850
- exposure: 3223.0035437
- 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_9000001850_12477cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12477cztM0_level2_quad_clean.evt
|
| Size (bytes) | 671,022,720 | 80,392,320 |
| Size | 639.9 MB
| 76.7 MB
|
| Events in quadrant A | 9,838,454 | 447,768 |
| Events in quadrant B | 3,818,800 | 536,323 |
| Events in quadrant C | 3,087,209 | 534,895 |
| Events in quadrant D | 3,175,923 | 499,652 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33368 | 2 |
| B | 0 | 15072 | 1 |
| C | 0 | 12801 | 1 |
| D | 0 | 13079 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5935 | 2350 | 39.595619% |
| B | 5935 | 256 | 4.313395% |
| C | 5935 | 35 | 0.589722% |
| D | 5935 | 29 | 0.488627% |
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 | 7286 | 5936 | 1709 | 1709 | 23.46% | 28.79% |  |
| B | 7286 | 5937 | 167 | 167 | 2.29% | 2.81% |  |
| C | 7286 | 5937 | 29 | 29 | 0.40% | 0.49% |  |
| D | 7286 | 5937 | 24 | 24 | 0.33% | 0.40% |  |
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 | 13 | 251 | 6958255 | 51501.4 | 668 | 656 | 135.1 |
| A | 12 | 189 | 74438 | 546.15 | 668 | 656 | 135.1 |
| A | 1 | 162 | 66853 | 490.0 | 668 | 656 | 135.1 |
| B | 4 | 239 | 555305 | 3923.69 | 755 | 741 | 141.3 |
| B | 0 | 85 | 163729 | 1153.18 | 755 | 741 | 141.3 |
| B | 3 | 64 | 46239 | 321.91 | 755 | 741 | 141.3 |
| C | 15 | 208 | 194192 | 1137.33 | 739 | 747 | 170.1 |
| C | 13 | 61 | 5452 | 27.66 | 739 | 747 | 170.1 |
| C | 14 | 234 | 5451 | 27.65 | 739 | 747 | 170.1 |
| D | 1 | 52 | 256251 | 1465.65 | 725 | 706 | 174.4 |
| D | 13 | 104 | 39917 | 224.89 | 725 | 706 | 174.4 |
| D | 9 | 85 | 36252 | 203.87 | 725 | 706 | 174.4 |
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 |  |