Observation information
- date-obs: 2018-07-13
- time-obs: 12:43:22.302700000
- date-end: 2018-07-14
- time-end: 17:10:43.305300000
- obs_id: G08_028T01_9000002220
- exposure: 52847.2965386
- 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/AS1G08_028T01_9000002220cztM0_level2_bc.evt
| modeM0/AS1G08_028T01_9000002220cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,080,764,800 | 1,126,152,000 |
Size | 2.9 GB
| 1.0 GB
|
Events in quadrant A | 18,108,781 | 7,125,529 |
Events in quadrant B | 25,651,175 | 7,238,079 |
Events in quadrant C | 23,819,459 | 6,957,770 |
Events in quadrant D | 19,665,147 | 6,697,056 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 136 | 0 |
B | 0 | 136 | 0 |
C | 0 | 136 | 0 |
D | 0 | 136 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 183744 | 0 |
B | 0 | 207943 | 0 |
C | 0 | 196708 | 0 |
D | 0 | 190933 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1802 | 0 |
B | 0 | 1802 | 0 |
C | 0 | 1802 | 0 |
D | 0 | 1802 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 88887 | 1263 | 1.420905% |
B | 88887 | 2912 | 3.276070% |
C | 88887 | 1435 | 1.614409% |
D | 88887 | 1723 | 1.938416% |
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 | 102443 | 88880 | 4 | 4 | 0.00% | 0.00% |  |
B | 102443 | 88879 | 118 | 118 | 0.12% | 0.13% |  |
C | 102443 | 88880 | 31 | 31 | 0.03% | 0.03% |  |
D | 102443 | 88882 | 261 | 261 | 0.25% | 0.29% |  |
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 | 12 | 189 | 309376 | 304.59 | 4617 | 4524 | 1000.8 |
A | 11 | 29 | 72382 | 67.8 | 4617 | 4524 | 1000.8 |
A | 0 | 226 | 30408 | 25.86 | 4617 | 4524 | 1000.8 |
B | 10 | 245 | 4586993 | 5188.94 | 4659 | 4536 | 883.1 |
B | 3 | 64 | 3135423 | 3545.25 | 4659 | 4536 | 883.1 |
B | 0 | 229 | 122641 | 133.74 | 4659 | 4536 | 883.1 |
C | 3 | 233 | 4054786 | 4099.4 | 4506 | 4447 | 988.0 |
C | 4 | 254 | 1023822 | 1031.72 | 4506 | 4447 | 988.0 |
C | 3 | 9 | 990533 | 998.03 | 4506 | 4447 | 988.0 |
D | 9 | 1 | 1577593 | 1507.23 | 4510 | 4345 | 1043.8 |
D | 10 | 70 | 434024 | 411.65 | 4510 | 4345 | 1043.8 |
D | 2 | 234 | 318961 | 301.41 | 4510 | 4345 | 1043.8 |
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 |  |