Observation information
- date-obs: 2018-01-19
- time-obs: 23:56:36.416900000
- date-end: 2018-01-20
- time-end: 02:20:12.421100000
- obs_id: T01_218T01_9000001852
- exposure: 4499.68751621
- sourceid: Mrk 421
- observer: subirbhattacharyya
- ra_pnt: 166.1138
- dec_pnt: 38.20883
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_218T01_9000001852_12506cztM0_level2.evt
| modeM0/AS1T01_218T01_9000001852_12506cztM0_level2_quad_clean.evt
|
| Size (bytes) | 464,382,720 | 97,053,120 |
| Size | 442.9 MB
| 92.6 MB
|
| Events in quadrant A | 3,428,930 | 625,039 |
| Events in quadrant B | 3,592,168 | 646,839 |
| Events in quadrant C | 3,108,157 | 623,888 |
| Events in quadrant D | 3,490,155 | 587,324 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14303 | 3 |
| B | 0 | 14874 | 2 |
| C | 0 | 13660 | 2 |
| D | 0 | 14937 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 21 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6538 | 42 | 0.642398% |
| B | 6538 | 130 | 1.988376% |
| C | 6538 | 27 | 0.412970% |
| D | 6538 | 90 | 1.376568% |
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 | 7889 | 6540 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7889 | 6540 | 50 | 50 | 0.63% | 0.76% |  |
| C | 7889 | 6540 | 9 | 9 | 0.11% | 0.14% |  |
| D | 7889 | 6540 | 71 | 71 | 0.90% | 1.09% |  |
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 | 107117 | 650.34 | 808 | 792 | 163.5 |
| A | 1 | 178 | 62138 | 375.23 | 808 | 792 | 163.5 |
| A | 1 | 161 | 52526 | 316.43 | 808 | 792 | 163.5 |
| B | 4 | 239 | 326898 | 2133.12 | 810 | 792 | 152.9 |
| B | 0 | 214 | 46296 | 297.65 | 810 | 792 | 152.9 |
| B | 12 | 111 | 16718 | 104.17 | 810 | 792 | 152.9 |
| C | 14 | 234 | 55754 | 306.57 | 782 | 786 | 179.3 |
| C | 13 | 61 | 5892 | 28.48 | 782 | 786 | 179.3 |
| C | 14 | 67 | 3537 | 15.34 | 782 | 786 | 179.3 |
| D | 1 | 52 | 417730 | 2280.02 | 769 | 749 | 182.9 |
| D | 13 | 104 | 65747 | 355.4 | 769 | 749 | 182.9 |
| D | 8 | 195 | 23626 | 125.09 | 769 | 749 | 182.9 |
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 |  |