Observation information
- date-obs: 2018-01-15
- time-obs: 22:42:47.140900000
- date-end: 2018-01-16
- time-end: 00:42:21.144900000
- obs_id: A04_174T01_9000001850
- exposure: 3630.81187421
- 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_12446cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12446cztM0_level2_quad_clean.evt
|
| Size (bytes) | 465,050,880 | 89,308,800 |
| Size | 443.5 MB
| 85.2 MB
|
| Events in quadrant A | 3,600,286 | 583,422 |
| Events in quadrant B | 3,832,576 | 582,963 |
| Events in quadrant C | 2,863,471 | 590,826 |
| Events in quadrant D | 3,386,843 | 534,740 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14684 | 2 |
| B | 0 | 15186 | 1 |
| C | 0 | 12173 | 1 |
| D | 0 | 14102 | 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 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5904 | 49 | 0.829946% |
| B | 5904 | 308 | 5.216802% |
| C | 5904 | 16 | 0.271003% |
| D | 5904 | 224 | 3.794038% |
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 | 7175 | 5906 | 4 | 4 | 0.06% | 0.07% |  |
| B | 7175 | 5905 | 225 | 225 | 3.14% | 3.81% |  |
| C | 7175 | 5906 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7175 | 5906 | 107 | 107 | 1.49% | 1.81% |  |
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 | 212472 | 1414.85 | 741 | 730 | 149.7 |
| A | 1 | 178 | 121007 | 803.69 | 741 | 730 | 149.7 |
| A | 13 | 251 | 115891 | 769.5 | 741 | 730 | 149.7 |
| B | 4 | 239 | 572395 | 4173.89 | 731 | 715 | 137.0 |
| B | 0 | 85 | 137853 | 1001.26 | 731 | 715 | 137.0 |
| B | 3 | 64 | 113133 | 820.78 | 731 | 715 | 137.0 |
| C | 15 | 208 | 7250 | 38.53 | 732 | 741 | 168.9 |
| C | 13 | 61 | 5263 | 26.77 | 732 | 741 | 168.9 |
| C | 14 | 234 | 4650 | 23.14 | 732 | 741 | 168.9 |
| D | 1 | 52 | 336079 | 1984.08 | 702 | 685 | 169.0 |
| D | 13 | 104 | 136287 | 802.17 | 702 | 685 | 169.0 |
| D | 7 | 71 | 107872 | 634.08 | 702 | 685 | 169.0 |
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 |  |