Observation information
- date-obs: 2017-01-13
- time-obs: 04:11:35.886900000
- date-end: 2017-01-13
- time-end: 06:30:59.886300000
- obs_id: T01_151T01_9000000960
- exposure: 3017.99731889
- sourceid: ngc1275
- observer: varsha
- ra_pnt: 49.95067
- dec_pnt: 41.5117
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_151T01_9000000960_07003cztM0_level2.evt
| modeM0/AS1T01_151T01_9000000960_07003cztM0_level2_quad_clean.evt
|
| Size (bytes) | 438,001,920 | 64,143,360 |
| Size | 417.7 MB
| 61.2 MB
|
| Events in quadrant A | 3,120,695 | 378,239 |
| Events in quadrant B | 3,235,946 | 381,082 |
| Events in quadrant C | 3,021,913 | 372,498 |
| Events in quadrant D | 3,446,246 | 358,710 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 19 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13450 | 3 |
| B | 0 | 13631 | 2 |
| C | 0 | 13280 | 2 |
| D | 0 | 14526 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6470 | 45 | 0.695518% |
| B | 6470 | 59 | 0.911901% |
| C | 6470 | 25 | 0.386399% |
| D | 6470 | 139 | 2.148377% |
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 | 7675 | 6471 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7675 | 6471 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7675 | 6471 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7675 | 6471 | 112 | 112 | 1.46% | 1.73% |  |
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 | 234 | 31020 | 186.66 | 801 | 782 | 162.0 |
| A | 0 | 226 | 7789 | 43.26 | 801 | 782 | 162.0 |
| A | 12 | 194 | 7341 | 40.49 | 801 | 782 | 162.0 |
| B | 0 | 214 | 45882 | 293.11 | 807 | 791 | 153.8 |
| B | 4 | 173 | 17478 | 108.47 | 807 | 791 | 153.8 |
| B | 12 | 111 | 15307 | 94.36 | 807 | 791 | 153.8 |
| C | 13 | 61 | 6048 | 29.49 | 772 | 776 | 178.8 |
| C | 10 | 22 | 5234 | 24.93 | 772 | 776 | 178.8 |
| C | 1 | 16 | 3822 | 17.04 | 772 | 776 | 178.8 |
| D | 12 | 233 | 254228 | 1349.06 | 766 | 744 | 187.9 |
| D | 8 | 195 | 128641 | 680.67 | 766 | 744 | 187.9 |
| D | 14 | 34 | 127781 | 676.1 | 766 | 744 | 187.9 |
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 |  |