Observation information
- date-obs: 2018-01-16
- time-obs: 10:49:29.175400000
- date-end: 2018-01-16
- time-end: 12:56:56.183500000
- obs_id: A04_174T01_9000001850
- exposure: 4285.53648773
- 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_12453cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12453cztM0_level2_quad_clean.evt
|
| Size (bytes) | 649,739,520 | 92,479,680 |
| Size | 619.6 MB
| 88.2 MB
|
| Events in quadrant A | 6,379,972 | 577,400 |
| Events in quadrant B | 5,382,891 | 545,995 |
| Events in quadrant C | 3,407,738 | 601,546 |
| Events in quadrant D | 4,008,670 | 562,830 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24351 | 3 |
| B | 0 | 20490 | 2 |
| C | 0 | 14970 | 2 |
| D | 0 | 16806 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7352 | 463 | 6.297606% |
| B | 7352 | 767 | 10.432535% |
| C | 7352 | 64 | 0.870511% |
| D | 7352 | 118 | 1.605005% |
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 | 7648 | 7353 | 166 | 166 | 2.17% | 2.26% |  |
| B | 7648 | 7354 | 593 | 593 | 7.75% | 8.06% |  |
| C | 7648 | 7354 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7648 | 7354 | 51 | 51 | 0.67% | 0.69% |  |
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 | 13 | 251 | 2330945 | 13025.34 | 875 | 859 | 178.9 |
| A | 12 | 189 | 250808 | 1397.23 | 875 | 859 | 178.9 |
| A | 1 | 162 | 144277 | 801.72 | 875 | 859 | 178.9 |
| B | 4 | 239 | 1829074 | 11114.3 | 852 | 831 | 164.5 |
| B | 11 | 51 | 69656 | 418.4 | 852 | 831 | 164.5 |
| B | 0 | 187 | 45651 | 272.47 | 852 | 831 | 164.5 |
| C | 15 | 208 | 14415 | 66.71 | 871 | 877 | 202.9 |
| C | 13 | 61 | 6442 | 27.42 | 871 | 877 | 202.9 |
| C | 3 | 202 | 2231 | 6.67 | 871 | 877 | 202.9 |
| D | 1 | 52 | 606671 | 2912.88 | 860 | 836 | 208.0 |
| D | 13 | 249 | 38375 | 180.49 | 860 | 836 | 208.0 |
| D | 10 | 199 | 36290 | 170.46 | 860 | 836 | 208.0 |
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 |  |