Observation information
- date-obs: 2017-04-01
- time-obs: 00:03:21.468900000
- date-end: 2017-04-01
- time-end: 01:53:16.455000000
- obs_id: G07_046T01_9000001124
- exposure: 4123.93920089
- 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_9000001124_08154cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001124_08154cztM0_level2_quad_clean.evt
|
| Size (bytes) | 431,824,320 | 80,648,640 |
| Size | 411.8 MB
| 76.9 MB
|
| Events in quadrant A | 2,862,570 | 504,513 |
| Events in quadrant B | 3,074,821 | 507,947 |
| Events in quadrant C | 3,172,438 | 509,901 |
| Events in quadrant D | 3,540,711 | 481,215 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12924 | 10 |
| B | 0 | 13400 | 3 |
| C | 0 | 13817 | 7 |
| D | 0 | 15052 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6281 | 35 | 0.557236% |
| B | 6284 | 61 | 0.970719% |
| C | 6282 | 39 | 0.620821% |
| D | 6285 | 106 | 1.686555% |
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 | 6595 | 6287 | 0 | 0 | 0.00% | 0.00% |  |
| B | 6595 | 6287 | 5 | 5 | 0.08% | 0.08% |  |
| C | 6595 | 6287 | 0 | 0 | 0.00% | 0.00% |  |
| D | 6595 | 6287 | 57 | 57 | 0.86% | 0.91% |  |
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 | 226 | 6920 | 40.35 | 742 | 728 | 153.4 |
| A | 12 | 194 | 6613 | 38.35 | 742 | 728 | 153.4 |
| A | 13 | 254 | 5970 | 34.16 | 742 | 728 | 153.4 |
| B | 0 | 214 | 44680 | 304.67 | 748 | 731 | 144.3 |
| B | 0 | 219 | 33987 | 230.54 | 748 | 731 | 144.3 |
| B | 4 | 81 | 25753 | 173.46 | 748 | 731 | 144.3 |
| C | 1 | 16 | 355066 | 2100.79 | 722 | 725 | 168.7 |
| C | 13 | 61 | 5400 | 27.72 | 722 | 725 | 168.7 |
| C | 12 | 4 | 1931 | 7.15 | 722 | 725 | 168.7 |
| D | 1 | 52 | 344252 | 1937.48 | 714 | 692 | 177.3 |
| D | 12 | 233 | 116638 | 653.87 | 714 | 692 | 177.3 |
| D | 1 | 7 | 107340 | 601.43 | 714 | 692 | 177.3 |
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 |  |