Observation information
- date-obs: 2018-03-01
- time-obs: 03:09:55.637500000
- date-end: 2018-03-01
- time-end: 05:31:47.635500000
- obs_id: C03_023T01_9000001930
- exposure: 4269.16549733
- sourceid: Crab_SSM1
- observer: ramadevi
- ra_pnt: 216.8708
- dec_pnt: -12.5862
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C03_023T01_9000001930_13100cztM0_level2.evt
| modeM0/AS1C03_023T01_9000001930_13100cztM0_level2_quad_clean.evt
|
| Size (bytes) | 507,867,840 | 93,640,320 |
| Size | 484.3 MB
| 89.3 MB
|
| Events in quadrant A | 4,047,089 | 590,053 |
| Events in quadrant B | 4,138,067 | 605,263 |
| Events in quadrant C | 3,186,662 | 607,580 |
| Events in quadrant D | 3,562,849 | 574,248 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16235 | 3 |
| B | 0 | 16617 | 2 |
| C | 0 | 13631 | 2 |
| D | 0 | 14870 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 20 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6574 | 255 | 3.878917% |
| B | 6574 | 187 | 2.844539% |
| C | 6574 | 29 | 0.441132% |
| D | 6574 | 69 | 1.049589% |
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 | 7785 | 6576 | 114 | 114 | 1.46% | 1.73% |  |
| B | 7785 | 6576 | 59 | 59 | 0.76% | 0.90% |  |
| C | 7785 | 6576 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7785 | 6576 | 30 | 30 | 0.39% | 0.46% |  |
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 | 15 | 223 | 508714 | 3044.48 | 822 | 805 | 166.8 |
| A | 15 | 239 | 221982 | 1325.77 | 822 | 805 | 166.8 |
| A | 12 | 189 | 67417 | 399.28 | 822 | 805 | 166.8 |
| B | 5 | 32 | 377303 | 2406.17 | 824 | 804 | 156.5 |
| B | 4 | 239 | 223770 | 1424.96 | 824 | 804 | 156.5 |
| B | 3 | 64 | 217435 | 1384.47 | 824 | 804 | 156.5 |
| C | 14 | 234 | 7891 | 37.49 | 814 | 823 | 188.5 |
| C | 13 | 61 | 5894 | 26.9 | 814 | 823 | 188.5 |
| C | 12 | 4 | 5721 | 25.98 | 814 | 823 | 188.5 |
| D | 1 | 52 | 239764 | 1232.61 | 809 | 789 | 193.9 |
| D | 10 | 157 | 182141 | 935.4 | 809 | 789 | 193.9 |
| D | 14 | 34 | 33486 | 168.65 | 809 | 789 | 193.9 |
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 |  |