Observation information
- date-obs: 2015-11-24
- time-obs: 05-25-50.000001337
- date-end: 2015-11-24
- time-end: 07-20-31.000001284
- obs_id: P01_156T01_9000000118
- exposure: 3463.07692584
- sourceid: Crab
- observer: parag
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_156T01_9000000118_00846cztM0_level2.evt
| modeM0/AS1P01_156T01_9000000118_00846cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,089,748,800 | 65,761,920 |
| Size | 1.0 GB
| 62.7 MB
|
| Events in quadrant A | 7,817,108 | 393,117 |
| Events in quadrant B | 8,715,369 | 385,674 |
| Events in quadrant C | 7,607,958 | 389,586 |
| Events in quadrant D | 8,436,331 | 373,268 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27792 | 0 |
| B | 0 | 30495 | 0 |
| C | 0 | 27160 | 0 |
| D | 0 | 29616 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6441 | 38 | 0.589971% |
| B | 6441 | 199 | 3.089582% |
| C | 6441 | 34 | 0.527868% |
| D | 6441 | 169 | 2.623816% |
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 | 6881 | 6442 | 215 | 215 | 3.12% | 3.34% |  |
| B | 6881 | 6442 | 503 | 503 | 7.31% | 7.81% |  |
| C | 6881 | 6442 | 177 | 177 | 2.57% | 2.75% |  |
| D | 6881 | 6442 | 750 | 750 | 10.90% | 11.64% |  |
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 | 11 | 79 | 7213 | 10.43 | 2033 | 2049 | 494.9 |
| A | 7 | 16 | 6738 | 9.47 | 2033 | 2049 | 494.9 |
| A | 3 | 111 | 6352 | 8.69 | 2033 | 2049 | 494.9 |
| B | 8 | 234 | 312039 | 629.96 | 2079 | 2093 | 492.0 |
| B | 5 | 65 | 200354 | 402.96 | 2079 | 2093 | 492.0 |
| B | 0 | 220 | 65727 | 129.33 | 2079 | 2093 | 492.0 |
| C | 5 | 234 | 39916 | 70.77 | 1915 | 1988 | 535.9 |
| C | 15 | 241 | 29866 | 52.02 | 1915 | 1988 | 535.9 |
| C | 3 | 111 | 27619 | 47.82 | 1915 | 1988 | 535.9 |
| D | 7 | 207 | 1270874 | 2172.59 | 1868 | 1935 | 584.1 |
| D | 1 | 4 | 88304 | 147.88 | 1868 | 1935 | 584.1 |
| D | 13 | 200 | 77804 | 129.9 | 1868 | 1935 | 584.1 |
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 |  |