Observation information
- date-obs: 2015-10-17
- time-obs: 10:23:18.637600000
- date-end: 2015-10-17
- time-end: 11:48:25.637100000
- obs_id: P01_126T02_9000000034
- exposure: 2649.08927761
- sourceid: Crab-ssm1-p2
- observer: ramadevi
- ra_pnt: 353.3941
- dec_pnt: -15.2323
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_126T02_9000000034_00287cztM0_level2.evt
| modeM0/AS1P01_126T02_9000000034_00287cztM0_level2_quad_clean.evt
|
| Size (bytes) | 636,168,960 | 46,316,160 |
| Size | 606.7 MB
| 44.2 MB
|
| Events in quadrant A | 7,316,171 | 275,366 |
| Events in quadrant B | 4,279,736 | 300,162 |
| Events in quadrant C | 3,862,803 | 293,916 |
| Events in quadrant D | 3,581,503 | 291,329 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24126 | 0 |
| B | 0 | 15128 | 0 |
| C | 0 | 13881 | 0 |
| D | 0 | 13064 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 70 | 0 |
| B | 0 | 70 | 0 |
| C | 0 | 70 | 0 |
| D | 0 | 70 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3402 | 361 | 10.611405% |
| B | 3402 | 35 | 1.028807% |
| C | 3402 | 6 | 0.176367% |
| D | 3402 | 6 | 0.176367% |
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 | 5107 | 3403 | 1854 | 1854 | 36.30% | 54.48% |  |
| B | 5107 | 3403 | 125 | 125 | 2.45% | 3.67% |  |
| C | 5107 | 3403 | 75 | 75 | 1.47% | 2.20% |  |
| D | 5107 | 3403 | 38 | 38 | 0.74% | 1.12% |  |
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 | 127 | 3097357 | 13633.15 | 1026 | 1020 | 227.1 |
| A | 15 | 250 | 77424 | 336.41 | 1026 | 1020 | 227.1 |
| A | 0 | 6 | 73845 | 320.65 | 1026 | 1020 | 227.1 |
| B | 0 | 85 | 76736 | 304.12 | 1043 | 1051 | 248.9 |
| B | 2 | 32 | 68905 | 272.66 | 1043 | 1051 | 248.9 |
| B | 0 | 183 | 31886 | 123.9 | 1043 | 1051 | 248.9 |
| C | 1 | 1 | 90983 | 350.57 | 923 | 953 | 256.8 |
| C | 1 | 192 | 50831 | 194.22 | 923 | 953 | 256.8 |
| C | 5 | 234 | 44198 | 168.39 | 923 | 953 | 256.8 |
| D | 13 | 106 | 24547 | 83.16 | 897 | 929 | 284.0 |
| D | 1 | 4 | 24331 | 82.4 | 897 | 929 | 284.0 |
| D | 13 | 117 | 18312 | 61.2 | 897 | 929 | 284.0 |
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 |  |