Observation information
- date-obs: 2015-11-14
- time-obs: 22-20-12.000007996
- date-end: 2015-11-15
- time-end: 00-27-29.000007965
- obs_id: P01_141T01_9000000104
- exposure: 4384.37373202
- sourceid: Crab
- observer: santoshv
- ra_pnt: 83.62586
- dec_pnt: 22.02464
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_141T01_9000000104_00709cztM0_level2.evt
| modeM0/AS1P01_141T01_9000000104_00709cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,044,201,600 | 81,463,680 |
| Size | 995.8 MB
| 77.7 MB
|
| Events in quadrant A | 7,458,118 | 510,373 |
| Events in quadrant B | 7,926,517 | 522,340 |
| Events in quadrant C | 8,443,966 | 504,115 |
| Events in quadrant D | 7,368,620 | 480,998 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26682 | 1 |
| B | 0 | 28085 | 1 |
| C | 0 | 29666 | 3 |
| D | 0 | 26475 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6438 | 16 | 0.248524% |
| B | 6438 | 41 | 0.636844% |
| C | 6437 | 22 | 0.341774% |
| D | 6437 | 56 | 0.869970% |
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 | 7638 | 6439 | 207 | 207 | 2.71% | 3.21% |  |
| B | 7638 | 6439 | 292 | 292 | 3.82% | 4.53% |  |
| C | 7637 | 6438 | 337 | 337 | 4.41% | 5.23% |  |
| D | 7637 | 6438 | 304 | 304 | 3.98% | 4.72% |  |
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 | 171 | 76776 | 161.67 | 1921 | 1941 | 462.9 |
| A | 15 | 69 | 12791 | 23.44 | 1921 | 1941 | 462.9 |
| A | 11 | 79 | 10314 | 18.09 | 1921 | 1941 | 462.9 |
| B | 5 | 247 | 53291 | 108.75 | 2024 | 2040 | 471.3 |
| B | 5 | 191 | 36932 | 74.04 | 2024 | 2040 | 471.3 |
| B | 0 | 207 | 36916 | 74.01 | 2024 | 2040 | 471.3 |
| C | 3 | 31 | 292781 | 580.39 | 1810 | 1882 | 501.2 |
| C | 3 | 15 | 249123 | 493.29 | 1810 | 1882 | 501.2 |
| C | 3 | 175 | 238685 | 472.46 | 1810 | 1882 | 501.2 |
| D | 6 | 226 | 353117 | 659.1 | 1735 | 1797 | 533.0 |
| D | 13 | 37 | 169795 | 315.17 | 1735 | 1797 | 533.0 |
| D | 0 | 25 | 138780 | 256.99 | 1735 | 1797 | 533.0 |
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 |  |