Observation information
- date-obs: 2018-01-19
- time-obs: 03:14:24.362000000
- date-end: 2018-01-19
- time-end: 05:23:01.367100000
- obs_id: A04_174T01_9000001850
- exposure: 3320.10771016
- 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_12493cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12493cztM0_level2_quad_clean.evt
|
| Size (bytes) | 509,837,760 | 81,072,000 |
| Size | 486.2 MB
| 77.3 MB
|
| Events in quadrant A | 3,689,841 | 504,051 |
| Events in quadrant B | 3,622,998 | 516,533 |
| Events in quadrant C | 3,216,822 | 508,154 |
| Events in quadrant D | 4,458,021 | 460,878 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15255 | 3 |
| B | 0 | 14936 | 2 |
| C | 0 | 13846 | 2 |
| D | 0 | 17576 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6672 | 71 | 1.064149% |
| B | 6672 | 84 | 1.258993% |
| C | 6672 | 12 | 0.179856% |
| D | 6672 | 265 | 3.971823% |
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 | 7718 | 6674 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7718 | 6674 | 16 | 16 | 0.21% | 0.24% |  |
| C | 7718 | 6674 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7718 | 6674 | 215 | 215 | 2.79% | 3.22% |  |
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 | 157095 | 932.95 | 826 | 810 | 167.5 |
| A | 1 | 178 | 93658 | 554.26 | 826 | 810 | 167.5 |
| A | 1 | 161 | 80030 | 472.91 | 826 | 810 | 167.5 |
| B | 4 | 239 | 187110 | 1174.1 | 835 | 816 | 158.7 |
| B | 0 | 229 | 50138 | 310.84 | 835 | 816 | 158.7 |
| B | 0 | 219 | 48943 | 303.31 | 835 | 816 | 158.7 |
| C | 15 | 208 | 57886 | 304.52 | 809 | 817 | 187.4 |
| C | 13 | 61 | 6004 | 27.68 | 809 | 817 | 187.4 |
| C | 14 | 234 | 3769 | 15.75 | 809 | 817 | 187.4 |
| D | 1 | 52 | 677925 | 3570.52 | 781 | 762 | 189.7 |
| D | 7 | 80 | 656517 | 3457.64 | 781 | 762 | 189.7 |
| D | 13 | 249 | 64064 | 333.78 | 781 | 762 | 189.7 |
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 |  |