Observation information
- date-obs: 2017-04-01
- time-obs: 00:03:21.468900000
- date-end: 2017-04-01
- time-end: 14:38:01.436500000
- obs_id: G07_046T01_9000001124
- exposure: 25152.5459633
- 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_9000001124cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001124cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,328,882,560 | 532,618,560 |
Size | 3.1 GB
| 507.9 MB
|
Events in quadrant A | 21,329,199 | 3,295,929 |
Events in quadrant B | 22,569,817 | 3,311,782 |
Events in quadrant C | 23,181,453 | 3,311,972 |
Events in quadrant D | 30,679,404 | 3,103,036 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 93260 | 0 |
B | 0 | 95936 | 0 |
C | 0 | 97690 | 0 |
D | 0 | 122361 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 926 | 0 |
B | 0 | 920 | 0 |
C | 0 | 926 | 0 |
D | 0 | 928 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 63 | 0 |
B | 0 | 63 | 0 |
C | 0 | 63 | 0 |
D | 0 | 63 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 45301 | 435 | 0.960244% |
B | 45289 | 528 | 1.165846% |
C | 45275 | 329 | 0.726670% |
D | 45259 | 2640 | 5.833094% |
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 | 52481 | 45673 | 2 | 2 | 0.00% | 0.00% |  |
B | 52481 | 45641 | 62 | 62 | 0.12% | 0.14% |  |
C | 52481 | 45661 | 0 | 0 | 0.00% | 0.00% |  |
D | 52481 | 45617 | 2208 | 2208 | 4.21% | 4.84% |  |
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 | 89150 | 74.62 | 5510 | 5390 | 1122.5 |
A | 0 | 226 | 52335 | 41.82 | 5510 | 5390 | 1122.5 |
A | 12 | 194 | 48824 | 38.7 | 5510 | 5390 | 1122.5 |
B | 0 | 214 | 462397 | 439.69 | 5513 | 5391 | 1039.4 |
B | 10 | 16 | 256656 | 241.75 | 5513 | 5391 | 1039.4 |
B | 0 | 219 | 149333 | 138.49 | 5513 | 5391 | 1039.4 |
C | 1 | 16 | 2350832 | 1893.44 | 5338 | 5362 | 1238.7 |
C | 13 | 61 | 40505 | 28.37 | 5338 | 5362 | 1238.7 |
C | 8 | 222 | 18903 | 10.93 | 5338 | 5362 | 1238.7 |
D | 13 | 105 | 4229456 | 3278.08 | 5244 | 5102 | 1288.7 |
D | 1 | 52 | 2720157 | 2106.87 | 5244 | 5102 | 1288.7 |
D | 5 | 233 | 998266 | 770.69 | 5244 | 5102 | 1288.7 |
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 |  |