Observation information
- date-obs: 2019-05-15
- time-obs: 03:43:10.305300000
- date-end: 2019-05-15
- time-end: 05:59:56.303200000
- obs_id: T03_116T01_9000002916
- exposure: 4179.35283858
- sourceid: GRS 1915+105
- observer: bari
- ra_pnt: 288.7981
- dec_pnt: 10.94577
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_116T01_9000002916_19613cztM0_level2.evt
| modeM0/AS1T03_116T01_9000002916_19613cztM0_level2_quad_clean.evt
|
| Size (bytes) | 475,263,360 | 101,062,080 |
| Size | 453.2 MB
| 96.4 MB
|
| Events in quadrant A | 3,400,531 | 671,704 |
| Events in quadrant B | 3,502,749 | 678,781 |
| Events in quadrant C | 3,506,310 | 633,466 |
| Events in quadrant D | 3,543,683 | 624,644 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13812 | 2 |
| B | 0 | 14266 | 2 |
| C | 0 | 14201 | 2 |
| D | 0 | 14584 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6481 | 59 | 0.910353% |
| B | 6481 | 92 | 1.419534% |
| C | 6481 | 123 | 1.897855% |
| D | 6481 | 58 | 0.894924% |
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 | 7806 | 6483 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7806 | 6483 | 9 | 9 | 0.12% | 0.14% |  |
| C | 7806 | 6483 | 32 | 32 | 0.41% | 0.49% |  |
| D | 7806 | 6483 | 16 | 16 | 0.20% | 0.25% |  |
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 | 11 | 29 | 39700 | 224.62 | 866 | 850 | 173.0 |
| A | 9 | 143 | 29767 | 167.19 | 866 | 850 | 173.0 |
| A | 0 | 226 | 7585 | 38.94 | 866 | 850 | 173.0 |
| B | 4 | 216 | 76833 | 469.28 | 856 | 836 | 161.9 |
| B | 7 | 220 | 62465 | 380.55 | 856 | 836 | 161.9 |
| B | 12 | 111 | 18776 | 110.78 | 856 | 836 | 161.9 |
| C | 3 | 233 | 206262 | 1091.6 | 810 | 819 | 188.2 |
| C | 14 | 238 | 129108 | 681.65 | 810 | 819 | 188.2 |
| C | 9 | 15 | 6953 | 32.59 | 810 | 819 | 188.2 |
| D | 7 | 238 | 338755 | 1687.72 | 830 | 810 | 200.2 |
| D | 1 | 52 | 51555 | 253.42 | 830 | 810 | 200.2 |
| D | 2 | 234 | 25036 | 120.99 | 830 | 810 | 200.2 |
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 |  |