Observation information
- date-obs: 2017-03-29
- time-obs: 02:16:46.456000000
- date-end: 2017-03-29
- time-end: 12:58:49.424300000
- obs_id: G06_033T01_9000001116
- exposure: 19455.4197829
- sourceid: GRS 1915+105
- observer: jsyadav
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G06_033T01_9000001116_08117cztM0_level2.evt
| modeM0/AS1G06_033T01_9000001116_08117cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,303,467,200 | 407,819,520 |
| Size | 2.1 GB
| 388.9 MB
|
| Events in quadrant A | 16,456,252 | 2,506,361 |
| Events in quadrant B | 17,120,141 | 2,529,239 |
| Events in quadrant C | 15,729,895 | 2,546,030 |
| Events in quadrant D | 18,140,659 | 2,416,936 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 42 | 0 |
| B | 0 | 42 | 0 |
| C | 0 | 42 | 0 |
| D | 0 | 42 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 698 | 0 |
| B | 0 | 698 | 0 |
| C | 0 | 698 | 0 |
| D | 0 | 698 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 71055 | 7 |
| B | 0 | 72881 | 6 |
| C | 0 | 69911 | 6 |
| D | 0 | 77099 | 6 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 34253 | 363 | 1.059761% |
| B | 34253 | 447 | 1.304995% |
| C | 34253 | 243 | 0.709427% |
| D | 34253 | 525 | 1.532712% |
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 | 38523 | 34256 | 3 | 3 | 0.01% | 0.01% |  |
| B | 38523 | 34256 | 33 | 33 | 0.09% | 0.10% |  |
| C | 38523 | 34256 | 4 | 4 | 0.01% | 0.01% |  |
| D | 38523 | 34256 | 223 | 223 | 0.58% | 0.65% |  |
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 | 8 | 15 | 573735 | 682.89 | 4116 | 4036 | 834.2 |
| A | 0 | 226 | 39051 | 41.97 | 4116 | 4036 | 834.2 |
| A | 12 | 194 | 36936 | 39.44 | 4116 | 4036 | 834.2 |
| B | 0 | 214 | 420115 | 528.16 | 4128 | 4034 | 787.8 |
| B | 10 | 16 | 201424 | 250.56 | 4128 | 4034 | 787.8 |
| B | 5 | 255 | 175802 | 218.04 | 4128 | 4034 | 787.8 |
| C | 12 | 4 | 34525 | 32.86 | 4009 | 4032 | 927.9 |
| C | 13 | 61 | 30892 | 28.95 | 4009 | 4032 | 927.9 |
| C | 1 | 16 | 27328 | 25.11 | 4009 | 4032 | 927.9 |
| D | 1 | 52 | 923695 | 938.46 | 4006 | 3896 | 980.1 |
| D | 5 | 233 | 662777 | 672.25 | 4006 | 3896 | 980.1 |
| D | 2 | 152 | 636706 | 645.65 | 4006 | 3896 | 980.1 |
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 |  |