Observation information
- date-obs: 2018-04-08
- time-obs: 04:08:09.874400000
- date-end: 2018-04-08
- time-end: 06:11:54.871400000
- obs_id: T02_039T01_9000002026
- exposure: 3743.23820029
- sourceid: Crab
- observer: tilak
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_039T01_9000002026_13663cztM0_level2.evt
| modeM0/AS1T02_039T01_9000002026_13663cztM0_level2_quad_clean.evt
|
| Size (bytes) | 529,770,240 | 92,833,920 |
| Size | 505.2 MB
| 88.5 MB
|
| Events in quadrant A | 3,423,427 | 611,179 |
| Events in quadrant B | 4,116,157 | 613,480 |
| Events in quadrant C | 3,497,666 | 600,315 |
| Events in quadrant D | 4,592,810 | 559,413 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13736 | 2 |
| B | 0 | 16381 | 1 |
| C | 0 | 14086 | 1 |
| D | 0 | 18053 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6115 | 119 | 1.946034% |
| B | 6115 | 192 | 3.139820% |
| C | 6115 | 90 | 1.471791% |
| D | 6115 | 217 | 3.548651% |
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 | 7426 | 6117 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7426 | 6117 | 53 | 53 | 0.71% | 0.87% |  |
| C | 7426 | 6117 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7426 | 6117 | 54 | 54 | 0.73% | 0.88% |  |
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 | 17691 | 95.2 | 879 | 868 | 176.7 |
| A | 0 | 226 | 7724 | 38.8 | 879 | 868 | 176.7 |
| A | 9 | 143 | 7263 | 36.19 | 879 | 868 | 176.7 |
| B | 0 | 219 | 206122 | 1262.39 | 874 | 859 | 162.6 |
| B | 0 | 229 | 195388 | 1196.37 | 874 | 859 | 162.6 |
| B | 0 | 189 | 103443 | 630.9 | 874 | 859 | 162.6 |
| C | 3 | 233 | 240043 | 1252.82 | 833 | 842 | 190.9 |
| C | 13 | 61 | 6051 | 27.28 | 833 | 842 | 190.9 |
| C | 14 | 234 | 4579 | 19.57 | 833 | 842 | 190.9 |
| D | 5 | 222 | 1395637 | 7145.48 | 824 | 807 | 195.2 |
| D | 2 | 234 | 24265 | 120.17 | 824 | 807 | 195.2 |
| D | 8 | 195 | 22912 | 113.24 | 824 | 807 | 195.2 |
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 |  |