Observation information
- date-obs: 2015-10-18
- time-obs: 01:28:14.635600000
- date-end: 2015-10-18
- time-end: 03:33:04.635100000
- obs_id: P01_126T02_9000000034
- exposure: 1885.3418629
- 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_00297cztM0_level2.evt
| modeM0/AS1P01_126T02_9000000034_00297cztM0_level2_quad_clean.evt
|
| Size (bytes) | 900,368,640 | 40,720,320 |
| Size | 858.7 MB
| 38.8 MB
|
| Events in quadrant A | 7,149,862 | 203,412 |
| Events in quadrant B | 6,894,391 | 212,421 |
| Events in quadrant C | 6,668,240 | 208,459 |
| Events in quadrant D | 6,170,772 | 203,645 |
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 | 25357 | 0 |
| B | 0 | 24602 | 0 |
| C | 0 | 23922 | 0 |
| D | 0 | 22441 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5784 | 91 | 1.573306% |
| B | 5784 | 2 | 0.034578% |
| C | 5784 | 8 | 0.138313% |
| D | 5784 | 10 | 0.172891% |
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 | 7491 | 5785 | 294 | 294 | 3.92% | 5.08% |  |
| B | 7491 | 5785 | 67 | 67 | 0.89% | 1.16% |  |
| C | 7491 | 5785 | 105 | 105 | 1.40% | 1.82% |  |
| D | 7491 | 5785 | 45 | 45 | 0.60% | 0.78% |  |
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 | 12 | 149 | 387038 | 999.63 | 1727 | 1714 | 385.5 |
| A | 0 | 6 | 64163 | 162.01 | 1727 | 1714 | 385.5 |
| A | 13 | 17 | 13688 | 31.06 | 1727 | 1714 | 385.5 |
| B | 0 | 183 | 97275 | 229.17 | 1766 | 1777 | 416.7 |
| B | 5 | 46 | 36950 | 84.41 | 1766 | 1777 | 416.7 |
| B | 5 | 215 | 6358 | 10.99 | 1766 | 1777 | 416.7 |
| C | 1 | 1 | 124126 | 270.76 | 1619 | 1679 | 452.2 |
| C | 3 | 159 | 94484 | 205.22 | 1619 | 1679 | 452.2 |
| C | 2 | 192 | 63821 | 137.41 | 1619 | 1679 | 452.2 |
| D | 1 | 5 | 53104 | 105.62 | 1540 | 1596 | 487.7 |
| D | 10 | 154 | 48074 | 95.31 | 1540 | 1596 | 487.7 |
| D | 7 | 175 | 45791 | 90.63 | 1540 | 1596 | 487.7 |
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 |  |