Observation information
- date-obs: 2016-07-20
- time-obs: 01:54:43.983900000
- date-end: 2016-07-20
- time-end: 03:59:45.979000000
- obs_id: G05_167T02_9000000546
- exposure: 3718.98746814
- sourceid: GRS1915+105
- observer: dipankar
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_167T02_9000000546_04381cztM0_level2.evt
| modeM0/AS1G05_167T02_9000000546_04381cztM0_level2_quad_clean.evt
|
| Size (bytes) | 424,342,080 | 71,190,720 |
| Size | 404.7 MB
| 67.9 MB
|
| Events in quadrant A | 2,962,103 | 427,661 |
| Events in quadrant B | 3,051,409 | 434,995 |
| Events in quadrant C | 3,172,801 | 430,090 |
| Events in quadrant D | 3,224,515 | 411,152 |
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 | 13243 | 8 |
| B | 0 | 13398 | 17 |
| C | 0 | 13961 | 17 |
| D | 0 | 14393 | 17 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6474 | 36 | 0.556070% |
| B | 6469 | 50 | 0.772917% |
| C | 6469 | 70 | 1.082084% |
| D | 6471 | 69 | 1.066296% |
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 | 7502 | 6478 | 6 | 6 | 0.08% | 0.09% |  |
| B | 7502 | 6478 | 17 | 17 | 0.23% | 0.26% |  |
| C | 7502 | 6477 | 36 | 36 | 0.48% | 0.56% |  |
| D | 7502 | 6478 | 58 | 58 | 0.77% | 0.90% |  |
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 | 13 | 251 | 50738 | 322.56 | 756 | 740 | 155.0 |
| A | 0 | 226 | 7651 | 44.59 | 756 | 740 | 155.0 |
| A | 12 | 194 | 7309 | 42.38 | 756 | 740 | 155.0 |
| B | 5 | 200 | 81369 | 549.31 | 763 | 746 | 146.8 |
| B | 14 | 167 | 15187 | 98.39 | 763 | 746 | 146.8 |
| B | 12 | 111 | 13697 | 88.24 | 763 | 746 | 146.8 |
| C | 9 | 247 | 204072 | 1181.03 | 730 | 734 | 172.2 |
| C | 14 | 48 | 105887 | 610.75 | 730 | 734 | 172.2 |
| C | 9 | 16 | 10864 | 58.84 | 730 | 734 | 172.2 |
| D | 13 | 239 | 164651 | 932.36 | 722 | 702 | 175.8 |
| D | 2 | 136 | 108473 | 612.88 | 722 | 702 | 175.8 |
| D | 13 | 223 | 78304 | 441.31 | 722 | 702 | 175.8 |
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 |  |