Observation information
- date-obs: 2017-03-15
- time-obs: 19:16:35.588400000
- date-end: 2017-03-15
- time-end: 21:26:09.583300000
- obs_id: A02_027T01_9000001084
- exposure: 4574.7225027
- sourceid: Her X-1
- observer: dleahy
- ra_pnt: 254.4575
- dec_pnt: 35.34233
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_027T01_9000001084_07915cztM0_level2.evt
| modeM0/AS1A02_027T01_9000001084_07915cztM0_level2_quad_clean.evt
|
| Size (bytes) | 510,085,440 | 93,173,760 |
| Size | 486.5 MB
| 88.9 MB
|
| Events in quadrant A | 3,119,269 | 583,650 |
| Events in quadrant B | 3,294,643 | 605,285 |
| Events in quadrant C | 5,053,067 | 607,260 |
| Events in quadrant D | 3,547,274 | 579,317 |
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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13606 | 3 |
| B | 0 | 14103 | 2 |
| C | 0 | 19319 | 2 |
| D | 0 | 14821 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6400 | 62 | 0.968750% |
| B | 6400 | 71 | 1.109375% |
| C | 6400 | 416 | 6.500000% |
| D | 6400 | 114 | 1.781250% |
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 | 7620 | 6401 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7620 | 6401 | 3 | 3 | 0.04% | 0.05% |  |
| C | 7620 | 6401 | 208 | 208 | 2.73% | 3.25% |  |
| D | 7620 | 6401 | 54 | 54 | 0.71% | 0.84% |  |
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 | 44457 | 270.86 | 792 | 776 | 161.3 |
| A | 3 | 1 | 10039 | 57.44 | 792 | 776 | 161.3 |
| A | 0 | 226 | 7432 | 41.27 | 792 | 776 | 161.3 |
| B | 4 | 239 | 69308 | 451.29 | 805 | 787 | 151.8 |
| B | 4 | 81 | 66720 | 434.24 | 805 | 787 | 151.8 |
| B | 12 | 111 | 15624 | 97.72 | 805 | 787 | 151.8 |
| C | 1 | 16 | 2025251 | 11320.76 | 775 | 778 | 178.8 |
| C | 12 | 4 | 6464 | 31.8 | 775 | 778 | 178.8 |
| C | 13 | 61 | 5776 | 27.95 | 775 | 778 | 178.8 |
| D | 1 | 52 | 271066 | 1426.14 | 779 | 755 | 189.5 |
| D | 5 | 233 | 98275 | 514.51 | 779 | 755 | 189.5 |
| D | 6 | 18 | 62108 | 323.69 | 779 | 755 | 189.5 |
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 |  |