Observation information
- date-obs: 2017-01-13
- time-obs: 05:53:15.886500000
- date-end: 2017-01-13
- time-end: 08:14:46.885600000
- obs_id: T01_151T01_9000000960
- exposure: 3536.04784926
- 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_07004cztM0_level2.evt
| modeM0/AS1T01_151T01_9000000960_07004cztM0_level2_quad_clean.evt
|
| Size (bytes) | 438,102,720 | 74,747,520 |
| Size | 417.8 MB
| 71.3 MB
|
| Events in quadrant A | 3,182,329 | 462,243 |
| Events in quadrant B | 3,255,125 | 467,773 |
| Events in quadrant C | 3,053,700 | 452,991 |
| Events in quadrant D | 3,344,478 | 436,663 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13377 | 3 |
| B | 0 | 13541 | 2 |
| C | 0 | 13171 | 2 |
| D | 0 | 13896 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6362 | 72 | 1.131720% |
| B | 6362 | 78 | 1.226030% |
| C | 6362 | 51 | 0.801635% |
| D | 6362 | 86 | 1.351776% |
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 | 7632 | 6363 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7632 | 6363 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7632 | 6363 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7632 | 6363 | 45 | 45 | 0.59% | 0.71% |  |
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 | 25758 | 152.44 | 817 | 802 | 163.7 |
| A | 13 | 14 | 10297 | 58.0 | 817 | 802 | 163.7 |
| A | 0 | 226 | 8054 | 44.3 | 817 | 802 | 163.7 |
| B | 0 | 214 | 24606 | 153.98 | 821 | 804 | 154.6 |
| B | 4 | 239 | 22687 | 141.57 | 821 | 804 | 154.6 |
| B | 12 | 111 | 15521 | 95.21 | 821 | 804 | 154.6 |
| C | 13 | 61 | 6205 | 30.22 | 780 | 785 | 179.3 |
| C | 1 | 16 | 5827 | 28.11 | 780 | 785 | 179.3 |
| C | 14 | 128 | 2305 | 8.48 | 780 | 785 | 179.3 |
| D | 14 | 34 | 159115 | 830.14 | 784 | 760 | 190.8 |
| D | 8 | 195 | 158641 | 827.66 | 784 | 760 | 190.8 |
| D | 2 | 14 | 30791 | 157.43 | 784 | 760 | 190.8 |
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 |  |