Observation information
- date-obs: 2018-04-08
- time-obs: 07:44:51.868300000
- date-end: 2018-04-08
- time-end: 07:58:33.868200000
- obs_id: T02_039T01_9000002026
- exposure: 815.148962013
- 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_13665cztM0_level2.evt
| modeM0/AS1T02_039T01_9000002026_13665cztM0_level2_quad_clean.evt
|
| Size (bytes) | 63,463,680 | 19,998,720 |
| Size | 60.5 MB
| 19.1 MB
|
| Events in quadrant A | 454,669 | 137,013 |
| Events in quadrant B | 472,827 | 139,852 |
| Events in quadrant C | 460,403 | 134,551 |
| Events in quadrant D | 474,526 | 128,468 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1774 | 0 |
| B | 0 | 1893 | 0 |
| C | 0 | 1818 | 0 |
| D | 0 | 1880 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 823 | 0 | 0.000000% |
| B | 823 | 2 | 0.243013% |
| C | 823 | 0 | 0.000000% |
| D | 823 | 4 | 0.486027% |
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 | 824 | 824 | 0 | 0 | 0.00% | 0.00% |  |
| B | 824 | 824 | 0 | 0 | 0.00% | 0.00% |  |
| C | 824 | 824 | 0 | 0 | 0.00% | 0.00% |  |
| D | 824 | 824 | 5 | 5 | 0.61% | 0.61% |  |
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 | 1653 | 59.43 | 117 | 115 | 25.9 |
| A | 0 | 226 | 1017 | 34.85 | 117 | 115 | 25.9 |
| A | 12 | 194 | 882 | 29.64 | 117 | 115 | 25.9 |
| B | 0 | 219 | 14917 | 606.45 | 115 | 113 | 24.4 |
| B | 12 | 111 | 2421 | 94.55 | 115 | 113 | 24.4 |
| B | 0 | 229 | 2183 | 84.8 | 115 | 113 | 24.4 |
| C | 3 | 233 | 29766 | 1093.38 | 110 | 111 | 27.1 |
| C | 13 | 61 | 826 | 26.36 | 110 | 111 | 27.1 |
| C | 3 | 202 | 279 | 6.19 | 110 | 111 | 27.1 |
| D | 1 | 52 | 13616 | 463.6 | 111 | 108 | 29.1 |
| D | 8 | 195 | 12970 | 441.43 | 111 | 108 | 29.1 |
| D | 14 | 35 | 11832 | 402.37 | 111 | 108 | 29.1 |
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 |  |