Observation information
- date-obs: 2015-10-17
- time-obs: 11:22:35.638000000
- date-end: 2015-10-17
- time-end: 13:32:32.636300000
- obs_id: P01_126T02_9000000034
- exposure: 933.886711873
- 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_00288cztM0_level2.evt
| modeM0/AS1P01_126T02_9000000034_00288cztM0_level2_quad_clean.evt
|
| Size (bytes) | 984,015,360 | 25,456,320 |
| Size | 938.4 MB
| 24.3 MB
|
| Events in quadrant A | 9,759,705 | 91,337 |
| Events in quadrant B | 6,935,419 | 97,844 |
| Events in quadrant C | 6,543,235 | 96,743 |
| Events in quadrant D | 6,193,949 | 93,834 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 23 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32931 | 3 |
| B | 0 | 24547 | 2 |
| C | 0 | 23423 | 2 |
| D | 0 | 22379 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 112 | 0 |
| B | 0 | 112 | 0 |
| C | 0 | 112 | 0 |
| D | 0 | 112 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5578 | 195 | 3.495877% |
| B | 5578 | 8 | 0.143421% |
| C | 5578 | 4 | 0.071710% |
| D | 5578 | 18 | 0.322696% |
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 | 7283 | 5579 | 1588 | 1588 | 21.80% | 28.46% |  |
| B | 7283 | 5579 | 126 | 126 | 1.73% | 2.26% |  |
| C | 7283 | 5579 | 127 | 127 | 1.74% | 2.28% |  |
| D | 7283 | 5579 | 86 | 86 | 1.18% | 1.54% |  |
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 | 2404999 | 6215.72 | 1751 | 1741 | 386.6 |
| A | 12 | 149 | 472246 | 1216.9 | 1751 | 1741 | 386.6 |
| A | 15 | 53 | 64750 | 162.96 | 1751 | 1741 | 386.6 |
| B | 0 | 183 | 91096 | 218.46 | 1745 | 1760 | 408.9 |
| B | 5 | 46 | 62007 | 147.33 | 1745 | 1760 | 408.9 |
| B | 0 | 85 | 27637 | 63.28 | 1745 | 1760 | 408.9 |
| C | 1 | 1 | 184316 | 423.99 | 1548 | 1601 | 430.9 |
| C | 5 | 234 | 178373 | 410.2 | 1548 | 1601 | 430.9 |
| C | 3 | 159 | 67438 | 152.77 | 1548 | 1601 | 430.9 |
| D | 13 | 51 | 123538 | 256.53 | 1521 | 1583 | 475.4 |
| D | 1 | 4 | 87494 | 180.71 | 1521 | 1583 | 475.4 |
| D | 1 | 5 | 59708 | 122.26 | 1521 | 1583 | 475.4 |
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 |  |