Observation information
- date-obs: 2016-12-09
- time-obs: 01:06:36.715000000
- date-end: 2016-12-09
- time-end: 03:24:44.715500000
- obs_id: A02_046T01_9000000864
- exposure: 6385.69532027
- sourceid: Holmberg-II X-I
- observer: rita
- ra_pnt: 124.5404
- dec_pnt: 70.69764
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_046T01_9000000864_06483cztM0_level2.evt
| modeM0/AS1A02_046T01_9000000864_06483cztM0_level2_quad_clean.evt
|
| Size (bytes) | 410,221,440 | 125,248,320 |
| Size | 391.2 MB
| 119.4 MB
|
| Events in quadrant A | 3,005,781 | 849,364 |
| Events in quadrant B | 3,182,523 | 859,978 |
| Events in quadrant C | 2,868,622 | 834,040 |
| Events in quadrant D | 2,929,893 | 802,548 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13231 | 3 |
| B | 0 | 13735 | 2 |
| C | 0 | 13132 | 2 |
| D | 0 | 13411 | 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 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6420 | 32 | 0.498442% |
| B | 6420 | 57 | 0.887850% |
| C | 6420 | 12 | 0.186916% |
| D | 6420 | 19 | 0.295950% |
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 | 7730 | 6421 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7730 | 6421 | 30 | 30 | 0.39% | 0.47% |  |
| C | 7730 | 6421 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7730 | 6421 | 3 | 3 | 0.04% | 0.05% |  |
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 | 236 | 73094 | 472.05 | 753 | 738 | 153.3 |
| A | 8 | 15 | 17359 | 108.44 | 753 | 738 | 153.3 |
| A | 8 | 4 | 8784 | 52.49 | 753 | 738 | 153.3 |
| B | 0 | 219 | 138088 | 973.37 | 761 | 744 | 141.1 |
| B | 4 | 80 | 32488 | 224.97 | 761 | 744 | 141.1 |
| B | 0 | 214 | 19104 | 130.12 | 761 | 744 | 141.1 |
| C | 1 | 16 | 22501 | 131.33 | 725 | 728 | 165.8 |
| C | 9 | 54 | 15566 | 89.5 | 725 | 728 | 165.8 |
| C | 13 | 61 | 5909 | 31.25 | 725 | 728 | 165.8 |
| D | 2 | 152 | 67306 | 381.67 | 721 | 699 | 174.5 |
| D | 2 | 14 | 50187 | 283.58 | 721 | 699 | 174.5 |
| D | 8 | 195 | 42561 | 239.88 | 721 | 699 | 174.5 |
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 |  |