Observation information
- date-obs: 2017-08-31
- time-obs: 11:11:25.201900000
- date-end: 2017-09-01
- time-end: 00:03:20.190000000
- obs_id: G07_046T01_9000001506
- exposure: 20468.8394642
- 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/AS1G07_046T01_9000001506cztM0_level2.fits
| modeM0/AS1G07_046T01_9000001506cztM0_level2_quad_clean.evt
|
| Size (bytes) | 370,281,600 | 352,186,560 |
| Size | 353.1 MB
| 335.9 MB
|
| Events in quadrant A | 2,218,906 | 2,086,240 |
| Events in quadrant B | 2,110,690 | 2,009,484 |
| Events in quadrant C | 2,223,570 | 2,018,523 |
| Events in quadrant D | 1,906,680 | 1,799,364 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 716 | 0 |
| B | 0 | 722 | 0 |
| C | 0 | 726 | 0 |
| D | 0 | 723 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 87879 | 0 |
| B | 0 | 99095 | 0 |
| C | 0 | 84110 | 0 |
| D | 0 | 108770 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 44 | 0 |
| B | 0 | 44 | 0 |
| C | 0 | 44 | 0 |
| D | 0 | 44 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 40375 | 949 | 2.350464% |
| B | 39959 | 2052 | 5.135264% |
| C | 40571 | 608 | 1.498607% |
| D | 40778 | 1482 | 3.634313% |
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 | 46316 | 41521 | 0 | 0 | 0.00% | 0.00% |  |
| B | 46316 | 41107 | 0 | 0 | 0.00% | 0.00% |  |
| C | 46316 | 41622 | 0 | 0 | 0.00% | 0.00% |  |
| D | 46316 | 41529 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 2250 | 11.43 | 577 | 537 | 149.9 |
| A | 0 | 30 | 1752 | 8.11 | 577 | 537 | 149.9 |
| A | 7 | 110 | 1719 | 7.89 | 577 | 537 | 149.9 |
| B | 2 | 9 | 1746 | 10.62 | 556 | 526 | 114.9 |
| B | 12 | 226 | 1436 | 7.92 | 556 | 526 | 114.9 |
| B | 5 | 225 | 1416 | 7.75 | 556 | 526 | 114.9 |
| C | 1 | 80 | 1663 | 7.2 | 586 | 541 | 155.9 |
| C | 1 | 81 | 1653 | 7.13 | 586 | 541 | 155.9 |
| C | 12 | 241 | 1569 | 6.59 | 586 | 541 | 155.9 |
| D | 6 | 231 | 1416 | 6.24 | 543 | 491 | 148.1 |
| D | 3 | 31 | 1412 | 6.22 | 543 | 491 | 148.1 |
| D | 3 | 14 | 1385 | 6.03 | 543 | 491 | 148.1 |
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 |  |