Observation information
- date-obs: 2019-05-16
- time-obs: 06:01:02.271800000
- date-end: 2019-05-16
- time-end: 07:14:38.269900000
- obs_id: T03_116T01_9000002916
- exposure: 2092.79512136
- 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_19629cztM0_level2.evt
| modeM0/AS1T03_116T01_9000002916_19629cztM0_level2_quad_clean.evt
|
| Size (bytes) | 378,633,600 | 49,420,800 |
| Size | 361.1 MB
| 47.1 MB
|
| Events in quadrant A | 2,128,598 | 312,367 |
| Events in quadrant B | 2,221,291 | 312,975 |
| Events in quadrant C | 2,671,811 | 295,315 |
| Events in quadrant D | 4,144,727 | 264,680 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 88 | 0 |
| B | 0 | 88 | 0 |
| C | 0 | 88 | 0 |
| D | 0 | 88 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8913 | 0 |
| B | 0 | 9165 | 0 |
| C | 0 | 10541 | 0 |
| D | 0 | 15189 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4416 | 5 | 0.113225% |
| B | 4416 | 17 | 0.384964% |
| C | 4417 | 111 | 2.513018% |
| D | 4417 | 633 | 14.330994% |
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 | 4416 | 4416 | 0 | 0 | 0.00% | 0.00% |  |
| B | 4416 | 4416 | 11 | 11 | 0.25% | 0.25% |  |
| C | 4417 | 4417 | 72 | 72 | 1.63% | 1.63% |  |
| D | 4417 | 4417 | 604 | 604 | 13.67% | 13.67% |  |
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 | 4 | 2 | 11438 | 98.23 | 550 | 539 | 111.0 |
| A | 0 | 226 | 4840 | 38.76 | 550 | 539 | 111.0 |
| A | 3 | 137 | 4126 | 32.33 | 550 | 539 | 111.0 |
| B | 7 | 220 | 25961 | 244.12 | 541 | 531 | 104.2 |
| B | 3 | 64 | 25954 | 244.05 | 541 | 531 | 104.2 |
| B | 3 | 112 | 19027 | 177.56 | 541 | 531 | 104.2 |
| C | 3 | 233 | 592971 | 4951.73 | 511 | 515 | 119.6 |
| C | 14 | 238 | 80588 | 669.25 | 511 | 515 | 119.6 |
| C | 9 | 54 | 6053 | 46.29 | 511 | 515 | 119.6 |
| D | 12 | 218 | 1488518 | 12106.08 | 499 | 485 | 122.9 |
| D | 1 | 52 | 637582 | 5183.18 | 499 | 485 | 122.9 |
| D | 10 | 199 | 63542 | 513.01 | 499 | 485 | 122.9 |
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 |  |