Observation information
- date-obs: 2015-11-14
- time-obs: 16-29-10.000008124
- date-end: 2015-11-14
- time-end: 17-25-46.000008099
- obs_id: P01_141T01_9000000104
- exposure: 1131.8239686
- 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_00704cztM0_level2.evt
| modeM0/AS1P01_141T01_9000000104_00704cztM0_level2_quad_clean.evt
|
| Size (bytes) | 472,760,640 | 22,507,200 |
| Size | 450.9 MB
| 21.5 MB
|
| Events in quadrant A | 3,210,855 | 128,924 |
| Events in quadrant B | 3,589,537 | 129,561 |
| Events in quadrant C | 3,685,761 | 126,505 |
| Events in quadrant D | 3,671,221 | 122,972 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11250 | 1 |
| B | 0 | 12379 | 1 |
| C | 0 | 12652 | 1 |
| D | 0 | 12627 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 50 | 0 |
| B | 0 | 50 | 0 |
| C | 0 | 50 | 0 |
| D | 0 | 50 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2402 | 10 | 0.416320% |
| B | 2402 | 34 | 1.415487% |
| C | 2402 | 22 | 0.915903% |
| D | 2402 | 108 | 4.496253% |
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 | 3397 | 2403 | 119 | 119 | 3.50% | 4.95% |  |
| B | 3397 | 2403 | 311 | 311 | 9.16% | 12.94% |  |
| C | 3397 | 2403 | 208 | 208 | 6.12% | 8.66% |  |
| D | 3397 | 2403 | 363 | 363 | 10.69% | 15.11% |  |
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 | 3927 | 15.19 | 834 | 841 | 203.1 |
| A | 13 | 8 | 3476 | 12.97 | 834 | 841 | 203.1 |
| A | 12 | 236 | 2929 | 10.28 | 834 | 841 | 203.1 |
| B | 5 | 247 | 167701 | 806.48 | 864 | 869 | 206.9 |
| B | 5 | 191 | 98518 | 472.04 | 864 | 869 | 206.9 |
| B | 0 | 220 | 15511 | 70.78 | 864 | 869 | 206.9 |
| C | 3 | 31 | 126722 | 569.03 | 785 | 816 | 221.3 |
| C | 3 | 95 | 115960 | 520.4 | 785 | 816 | 221.3 |
| C | 3 | 15 | 115075 | 516.4 | 785 | 816 | 221.3 |
| D | 0 | 25 | 327007 | 1382.65 | 760 | 789 | 235.9 |
| D | 6 | 226 | 173630 | 732.57 | 760 | 789 | 235.9 |
| D | 9 | 52 | 156807 | 661.27 | 760 | 789 | 235.9 |
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 |  |