Observation information
- date-obs: 2017-07-09
- time-obs: 16:46:25.537200000
- date-end: 2017-07-09
- time-end: 22:47:19.530300000
- obs_id: G07_028T01_9000001370
- exposure: 9973.81282265
- sourceid: GRS 1915+105
- observer: santoshv
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G07_028T01_9000001370cztM0_level2.evt
| modeM0/AS1G07_028T01_9000001370cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,081,186,560 | 198,057,600 |
Size | 1.0 GB
| 188.9 MB
|
Events in quadrant A | 8,271,963 | 1,337,449 |
Events in quadrant B | 8,345,444 | 1,344,201 |
Events in quadrant C | 5,818,451 | 937,651 |
Events in quadrant D | 9,221,482 | 1,274,475 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 36240 | 0 |
B | 0 | 36279 | 0 |
C | 0 | 25541 | 0 |
D | 0 | 39001 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 11 | 0 |
C | 0 | 13 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 354 | 0 |
B | 0 | 360 | 0 |
C | 0 | 344 | 0 |
D | 0 | 352 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 17253 | 510 | 2.956008% |
B | 17207 | 587 | 3.411402% |
C | 12065 | 449 | 3.721508% |
D | 17102 | 500 | 2.923635% |
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 | 21655 | 19240 | 1 | 1 | 0.00% | 0.01% |  |
B | 21655 | 19154 | 13 | 13 | 0.06% | 0.07% |  |
C | 15493 | 13632 | 0 | 0 | 0.00% | 0.00% |  |
D | 21655 | 19049 | 47 | 47 | 0.22% | 0.25% |  |
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 | 1 | 162 | 45291 | 99.59 | 2123 | 2076 | 433.9 |
A | 14 | 111 | 26313 | 55.85 | 2123 | 2076 | 433.9 |
A | 0 | 226 | 19274 | 39.63 | 2123 | 2076 | 433.9 |
B | 10 | 252 | 52946 | 124.66 | 2114 | 2059 | 408.2 |
B | 12 | 111 | 48627 | 114.08 | 2114 | 2059 | 408.2 |
B | 15 | 85 | 40788 | 94.87 | 2114 | 2059 | 408.2 |
C | 4 | 254 | 44026 | 123.43 | 1470 | 1479 | 344.7 |
C | 14 | 234 | 21510 | 58.11 | 1470 | 1479 | 344.7 |
C | 8 | 128 | 11795 | 29.93 | 1470 | 1479 | 344.7 |
D | 1 | 52 | 415579 | 831.04 | 2043 | 1995 | 497.7 |
D | 7 | 46 | 389555 | 778.74 | 2043 | 1995 | 497.7 |
D | 10 | 199 | 339286 | 677.74 | 2043 | 1995 | 497.7 |
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 |  |