Observation information
- date-obs: 2019-06-13
- time-obs: 13:48:45.884800000
- date-end: 2019-06-13
- time-end: 15:18:19.870300000
- obs_id: T03_117T01_9000002988
- exposure: 2876.91685691
- sourceid: GRS 1915+105
- observer: tbelloni
- ra_pnt: 288.7981
- dec_pnt: 10.94577
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_117T01_9000002988_20048cztM0_level2.evt
| modeM0/AS1T03_117T01_9000002988_20048cztM0_level2_quad_clean.evt
|
| Size (bytes) | 304,488,000 | 66,867,840 |
| Size | 290.4 MB
| 63.8 MB
|
| Events in quadrant A | 2,225,871 | 443,970 |
| Events in quadrant B | 2,186,856 | 444,626 |
| Events in quadrant C | 2,189,486 | 425,433 |
| Events in quadrant D | 2,344,521 | 426,742 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9033 | 1 |
| B | 0 | 8855 | 1 |
| C | 0 | 8866 | 1 |
| D | 0 | 9448 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 82 | 0 |
| B | 0 | 82 | 0 |
| C | 0 | 82 | 0 |
| D | 0 | 82 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4030 | 79 | 1.960298% |
| B | 4030 | 88 | 2.183623% |
| C | 4030 | 95 | 2.357320% |
| D | 4030 | 74 | 1.836228% |
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 | 5375 | 4031 | 6 | 6 | 0.11% | 0.15% |  |
| B | 5375 | 4031 | 4 | 4 | 0.07% | 0.10% |  |
| C | 5375 | 4031 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5375 | 4031 | 8 | 8 | 0.15% | 0.20% |  |
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 | 14 | 238 | 78940 | 699.01 | 556 | 548 | 112.1 |
| A | 0 | 226 | 4865 | 38.49 | 556 | 548 | 112.1 |
| A | 11 | 29 | 4186 | 32.44 | 556 | 548 | 112.1 |
| B | 4 | 80 | 19283 | 175.96 | 551 | 540 | 106.5 |
| B | 12 | 111 | 12299 | 110.4 | 551 | 540 | 106.5 |
| B | 11 | 111 | 10730 | 95.67 | 551 | 540 | 106.5 |
| C | 14 | 238 | 85023 | 673.16 | 535 | 540 | 125.5 |
| C | 4 | 254 | 9139 | 68.52 | 535 | 540 | 125.5 |
| C | 3 | 233 | 6464 | 47.2 | 535 | 540 | 125.5 |
| D | 2 | 184 | 115387 | 864.09 | 546 | 532 | 132.9 |
| D | 12 | 218 | 90614 | 677.71 | 546 | 532 | 132.9 |
| D | 2 | 153 | 37823 | 280.55 | 546 | 532 | 132.9 |
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 |  |