Observation information
- date-obs: 2017-09-26
- time-obs: 16:21:29.523800000
- date-end: 2017-09-26
- time-end: 18:27:53.524600000
- obs_id: A03_071T01_9000001562
- exposure: 4630.19750566
- sourceid: NGC 1275
- observer: debbijoy
- ra_pnt: 49.95067
- dec_pnt: 41.5117
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_071T01_9000001562_10799cztM0_level2.evt
| modeM0/AS1A03_071T01_9000001562_10799cztM0_level2_quad_clean.evt
|
| Size (bytes) | 571,011,840 | 93,689,280 |
| Size | 544.6 MB
| 89.3 MB
|
| Events in quadrant A | 3,116,833 | 602,792 |
| Events in quadrant B | 5,695,055 | 597,243 |
| Events in quadrant C | 3,090,629 | 626,891 |
| Events in quadrant D | 4,955,947 | 562,573 |
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 | 13532 | 3 |
| B | 0 | 21349 | 2 |
| C | 0 | 13295 | 2 |
| D | 0 | 19193 | 2 |
| 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 | 6414 | 73 | 1.138135% |
| B | 6414 | 799 | 12.457125% |
| C | 6414 | 66 | 1.028999% |
| D | 6414 | 566 | 8.824447% |
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 | 7584 | 6415 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7584 | 6415 | 431 | 431 | 5.68% | 6.72% |  |
| C | 7584 | 6415 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7584 | 6415 | 459 | 459 | 6.05% | 7.16% |  |
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 | 174 | 38576 | 235.88 | 792 | 776 | 160.2 |
| A | 14 | 254 | 12461 | 72.92 | 792 | 776 | 160.2 |
| A | 8 | 15 | 11443 | 66.57 | 792 | 776 | 160.2 |
| B | 4 | 239 | 1884836 | 13052.99 | 768 | 750 | 144.3 |
| B | 0 | 85 | 400800 | 2771.55 | 768 | 750 | 144.3 |
| B | 15 | 204 | 235836 | 1628.68 | 768 | 750 | 144.3 |
| C | 13 | 61 | 5779 | 27.48 | 790 | 794 | 181.4 |
| C | 14 | 234 | 5667 | 26.86 | 790 | 794 | 181.4 |
| C | 14 | 67 | 2909 | 11.66 | 790 | 794 | 181.4 |
| D | 9 | 85 | 590143 | 3265.0 | 755 | 737 | 180.5 |
| D | 13 | 138 | 439531 | 2430.69 | 755 | 737 | 180.5 |
| D | 10 | 253 | 362016 | 2001.29 | 755 | 737 | 180.5 |
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 |  |