Observation information
- date-obs: 2017-05-19
- time-obs: 09:15:59.210300000
- date-end: 2017-05-19
- time-end: 21:57:04.222800000
- obs_id: G07_046T01_9000001236
- exposure: 23036.1386315
- 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_9000001236cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001236cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,155,512,320 | 486,745,920 |
Size | 2.9 GB
| 464.2 MB
|
Events in quadrant A | 21,746,617 | 3,096,468 |
Events in quadrant B | 29,249,744 | 2,975,251 |
Events in quadrant C | 21,035,663 | 3,068,371 |
Events in quadrant D | 20,972,375 | 2,991,041 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 89261 | 0 |
B | 0 | 111777 | 0 |
C | 0 | 86749 | 0 |
D | 0 | 86312 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 75 | 0 |
B | 0 | 75 | 0 |
C | 0 | 75 | 0 |
D | 0 | 75 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 782 | 0 |
B | 0 | 782 | 0 |
C | 0 | 782 | 0 |
D | 0 | 782 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 38004 | 830 | 2.183981% |
B | 38007 | 3901 | 10.263899% |
C | 38005 | 606 | 1.594527% |
D | 38006 | 729 | 1.918118% |
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 | 45666 | 38013 | 119 | 119 | 0.26% | 0.31% |  |
B | 45666 | 38013 | 2900 | 2900 | 6.35% | 7.63% |  |
C | 45666 | 38014 | 149 | 149 | 0.33% | 0.39% |  |
D | 45666 | 38012 | 241 | 241 | 0.53% | 0.63% |  |
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 | 8 | 5 | 2784839 | 2859.67 | 4815 | 4720 | 972.2 |
A | 15 | 174 | 287100 | 290.46 | 4815 | 4720 | 972.2 |
A | 5 | 16 | 103084 | 101.18 | 4815 | 4720 | 972.2 |
B | 7 | 202 | 9341325 | 10647.96 | 4645 | 4538 | 876.9 |
B | 4 | 48 | 1094046 | 1242.51 | 4645 | 4538 | 876.9 |
B | 10 | 16 | 492998 | 557.05 | 4645 | 4538 | 876.9 |
C | 9 | 68 | 2623055 | 2431.11 | 4683 | 4717 | 1077.0 |
C | 14 | 234 | 77644 | 67.71 | 4683 | 4717 | 1077.0 |
C | 1 | 3 | 56898 | 48.45 | 4683 | 4717 | 1077.0 |
D | 8 | 195 | 1658409 | 1463.48 | 4669 | 4571 | 1130.1 |
D | 7 | 71 | 633943 | 556.93 | 4669 | 4571 | 1130.1 |
D | 1 | 52 | 532501 | 467.16 | 4669 | 4571 | 1130.1 |
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 |  |