Observation information
- date-obs: 2018-01-29
- time-obs: 17:39:24.340700000
- date-end: 2018-01-29
- time-end: 19:42:11.032900000
- obs_id: A04_174T01_9000001876
- exposure: 3914.52899633
- 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_12650cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12650cztM0_level2_quad_clean.evt
|
| Size (bytes) | 540,037,440 | 95,189,760 |
| Size | 515.0 MB
| 90.8 MB
|
| Events in quadrant A | 3,331,927 | 641,463 |
| Events in quadrant B | 4,610,973 | 601,848 |
| Events in quadrant C | 2,992,867 | 634,148 |
| Events in quadrant D | 5,008,439 | 581,709 |
Level1 data integrity
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13853 | 2 |
| B | 0 | 17493 | 1 |
| C | 0 | 12611 | 1 |
| D | 0 | 18850 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6057 | 65 | 1.073139% |
| B | 6057 | 556 | 9.179462% |
| C | 6057 | 49 | 0.808981% |
| D | 6057 | 490 | 8.089813% |
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 | 7368 | 6058 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7368 | 6058 | 426 | 426 | 5.78% | 7.03% |  |
| C | 7368 | 6058 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7368 | 6058 | 412 | 412 | 5.59% | 6.80% |  |
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 | 153595 | 966.63 | 782 | 770 | 158.1 |
| A | 0 | 23 | 144672 | 910.19 | 782 | 770 | 158.1 |
| A | 0 | 226 | 16120 | 97.09 | 782 | 770 | 158.1 |
| B | 4 | 239 | 1456997 | 10357.68 | 750 | 735 | 140.6 |
| B | 11 | 51 | 105971 | 748.49 | 750 | 735 | 140.6 |
| B | 3 | 209 | 21883 | 150.42 | 750 | 735 | 140.6 |
| C | 15 | 208 | 18584 | 101.81 | 760 | 768 | 175.0 |
| C | 14 | 234 | 6982 | 35.51 | 760 | 768 | 175.0 |
| C | 13 | 61 | 5618 | 27.72 | 760 | 768 | 175.0 |
| D | 1 | 52 | 1868390 | 10496.75 | 742 | 724 | 177.9 |
| D | 10 | 157 | 246364 | 1380.56 | 742 | 724 | 177.9 |
| D | 13 | 249 | 30555 | 167.66 | 742 | 724 | 177.9 |
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 |  |