Observation information
- date-obs: 2018-01-21
- time-obs: 07:38:58.443300000
- date-end: 2018-01-21
- time-end: 09:38:53.437900000
- obs_id: A04_230T01_9000001854
- exposure: 4954.74859963
- sourceid: Her X-1
- observer: sumanbala
- ra_pnt: 254.4575
- dec_pnt: 35.34233
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_230T01_9000001854_12525cztM0_level2.evt
| modeM0/AS1A04_230T01_9000001854_12525cztM0_level2_quad_clean.evt
|
| Size (bytes) | 488,197,440 | 97,752,960 |
| Size | 465.6 MB
| 93.2 MB
|
| Events in quadrant A | 3,772,382 | 622,397 |
| Events in quadrant B | 3,550,358 | 632,348 |
| Events in quadrant C | 3,305,385 | 618,592 |
| Events in quadrant D | 3,668,604 | 586,655 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15781 | 2 |
| B | 0 | 15349 | 1 |
| C | 0 | 14834 | 1 |
| D | 0 | 16146 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7180 | 204 | 2.841226% |
| B | 7180 | 222 | 3.091922% |
| C | 7180 | 121 | 1.685237% |
| D | 7180 | 198 | 2.757660% |
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 | 7196 | 7182 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7196 | 7182 | 20 | 20 | 0.28% | 0.28% |  |
| C | 7196 | 7182 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7196 | 7182 | 47 | 47 | 0.65% | 0.65% |  |
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 | 1 | 162 | 138837 | 784.75 | 859 | 840 | 175.8 |
| A | 1 | 178 | 82915 | 466.74 | 859 | 840 | 175.8 |
| A | 12 | 189 | 77390 | 435.32 | 859 | 840 | 175.8 |
| B | 4 | 239 | 148698 | 894.39 | 856 | 835 | 165.3 |
| B | 3 | 64 | 32860 | 193.71 | 856 | 835 | 165.3 |
| B | 12 | 111 | 19326 | 111.85 | 856 | 835 | 165.3 |
| C | 3 | 233 | 37805 | 189.28 | 834 | 836 | 195.3 |
| C | 8 | 128 | 9049 | 42.05 | 834 | 836 | 195.3 |
| C | 13 | 61 | 6033 | 26.61 | 834 | 836 | 195.3 |
| D | 1 | 52 | 336962 | 1678.57 | 826 | 801 | 200.3 |
| D | 13 | 249 | 65425 | 322.69 | 826 | 801 | 200.3 |
| D | 2 | 14 | 54865 | 269.96 | 826 | 801 | 200.3 |
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 |  |