Observation information
- date-obs: 2019-06-14
- time-obs: 06:31:29.857900000
- date-end: 2019-06-14
- time-end: 08:44:02.856000000
- obs_id: T03_117T01_9000002988
- exposure: 3173.22081405
- 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_20059cztM0_level2.evt
| modeM0/AS1T03_117T01_9000002988_20059cztM0_level2_quad_clean.evt
|
| Size (bytes) | 470,784,960 | 79,643,520 |
| Size | 449.0 MB
| 76.0 MB
|
| Events in quadrant A | 3,338,958 | 506,168 |
| Events in quadrant B | 3,321,412 | 510,090 |
| Events in quadrant C | 3,254,253 | 480,140 |
| Events in quadrant D | 3,918,140 | 478,267 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13704 | 2 |
| B | 0 | 13607 | 2 |
| C | 0 | 13408 | 2 |
| D | 0 | 15815 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6259 | 98 | 1.565745% |
| B | 6259 | 91 | 1.453906% |
| C | 6259 | 84 | 1.342067% |
| D | 6259 | 81 | 1.294136% |
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 | 7429 | 6260 | 9 | 9 | 0.12% | 0.14% |  |
| B | 7429 | 6260 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7429 | 6260 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7429 | 6260 | 16 | 16 | 0.22% | 0.26% |  |
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 | 55892 | 325.92 | 850 | 835 | 168.9 |
| A | 13 | 254 | 8317 | 44.29 | 850 | 835 | 168.9 |
| A | 0 | 226 | 7448 | 39.15 | 850 | 835 | 168.9 |
| B | 4 | 80 | 19299 | 116.16 | 837 | 820 | 159.1 |
| B | 12 | 111 | 19268 | 115.96 | 837 | 820 | 159.1 |
| B | 11 | 111 | 17091 | 102.28 | 837 | 820 | 159.1 |
| C | 14 | 238 | 127237 | 683.93 | 799 | 807 | 184.9 |
| C | 13 | 61 | 5593 | 25.89 | 799 | 807 | 184.9 |
| C | 3 | 233 | 5380 | 24.74 | 799 | 807 | 184.9 |
| D | 1 | 52 | 557302 | 2785.71 | 820 | 796 | 199.8 |
| D | 2 | 184 | 188726 | 940.72 | 820 | 796 | 199.8 |
| D | 12 | 218 | 76443 | 378.67 | 820 | 796 | 199.8 |
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 |  |