Observation information
- date-obs: 2018-06-25
- time-obs: 13:18:02.820500000
- date-end: 2018-06-25
- time-end: 15:22:16.816800000
- obs_id: G08_010T02_9000002188
- exposure: 4524.92852794
- sourceid: ngc 4594
- observer: jmurthy
- ra_pnt: 189.9976
- dec_pnt: -11.62305
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_010T02_9000002188_14823cztM0_level2.evt
| modeM0/AS1G08_010T02_9000002188_14823cztM0_level2_quad_clean.evt
|
| Size (bytes) | 467,236,800 | 98,881,920 |
| Size | 445.6 MB
| 94.3 MB
|
| Events in quadrant A | 3,491,189 | 656,828 |
| Events in quadrant B | 3,538,291 | 645,325 |
| Events in quadrant C | 3,311,046 | 632,983 |
| Events in quadrant D | 3,384,126 | 622,122 |
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 | 14247 | 2 |
| B | 0 | 14500 | 1 |
| C | 0 | 13712 | 1 |
| D | 0 | 14193 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6264 | 116 | 1.851852% |
| B | 6264 | 128 | 2.043423% |
| C | 6264 | 58 | 0.925926% |
| D | 6264 | 124 | 1.979566% |
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 | 7455 | 6266 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7455 | 6266 | 26 | 26 | 0.35% | 0.41% |  |
| C | 7455 | 6266 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7455 | 6266 | 35 | 35 | 0.47% | 0.56% |  |
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 | 12 | 189 | 343270 | 2064.92 | 817 | 802 | 165.9 |
| A | 0 | 226 | 7435 | 39.99 | 817 | 802 | 165.9 |
| A | 12 | 194 | 6183 | 32.44 | 817 | 802 | 165.9 |
| B | 3 | 64 | 157791 | 1035.07 | 798 | 779 | 151.7 |
| B | 0 | 229 | 91344 | 597.03 | 798 | 779 | 151.7 |
| B | 15 | 33 | 39526 | 255.43 | 798 | 779 | 151.7 |
| C | 3 | 233 | 281752 | 1565.37 | 776 | 782 | 179.5 |
| C | 13 | 61 | 5587 | 26.77 | 776 | 782 | 179.5 |
| C | 6 | 96 | 3051 | 12.64 | 776 | 782 | 179.5 |
| D | 13 | 249 | 164613 | 850.02 | 784 | 766 | 192.8 |
| D | 7 | 254 | 141450 | 729.85 | 784 | 766 | 192.8 |
| D | 10 | 70 | 44850 | 228.7 | 784 | 766 | 192.8 |
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 |  |