Observation information
- date-obs: 2018-09-21
- time-obs: 07:09:42.286700000
- date-end: 2018-09-21
- time-end: 09:10:25.024600000
- obs_id: T02_094T01_9000002380
- exposure: 4532.18389185
- sourceid: Hercules X-1
- observer: dleahy
- ra_pnt: 254.4576
- dec_pnt: 35.34236
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_094T01_9000002380_16122cztM0_level2.evt
| modeM0/AS1T02_094T01_9000002380_16122cztM0_level2_quad_clean.evt
|
| Size (bytes) | 488,090,880 | 96,039,360 |
| Size | 465.5 MB
| 91.6 MB
|
| Events in quadrant A | 3,390,823 | 642,537 |
| Events in quadrant B | 3,358,246 | 645,165 |
| Events in quadrant C | 3,039,142 | 608,151 |
| Events in quadrant D | 4,584,457 | 591,407 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13828 | 2 |
| B | 0 | 13604 | 1 |
| C | 0 | 12713 | 1 |
| D | 0 | 17594 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6028 | 136 | 2.256138% |
| B | 6028 | 109 | 1.808228% |
| C | 6028 | 61 | 1.011944% |
| D | 6028 | 199 | 3.301261% |
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 | 7244 | 6029 | 81 | 81 | 1.12% | 1.34% |  |
| B | 7244 | 6029 | 40 | 40 | 0.55% | 0.66% |  |
| C | 7244 | 6029 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7244 | 6029 | 193 | 193 | 2.66% | 3.20% |  |
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 | 355041 | 2265.64 | 781 | 769 | 156.4 |
| A | 13 | 248 | 11517 | 68.74 | 781 | 769 | 156.4 |
| A | 8 | 247 | 9923 | 58.54 | 781 | 769 | 156.4 |
| B | 15 | 201 | 84789 | 580.58 | 774 | 757 | 144.7 |
| B | 7 | 220 | 48556 | 330.25 | 774 | 757 | 144.7 |
| B | 0 | 189 | 40838 | 276.92 | 774 | 757 | 144.7 |
| C | 14 | 238 | 114010 | 670.8 | 731 | 737 | 168.9 |
| C | 3 | 233 | 53948 | 315.12 | 731 | 737 | 168.9 |
| C | 8 | 128 | 8838 | 47.97 | 731 | 737 | 168.9 |
| D | 1 | 52 | 1555549 | 8676.16 | 745 | 725 | 179.2 |
| D | 5 | 222 | 158258 | 879.06 | 745 | 725 | 179.2 |
| D | 2 | 234 | 24729 | 133.95 | 745 | 725 | 179.2 |
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 |  |