Observation information
- date-obs: 2017-06-05
- time-obs: 23:47:21.135800000
- date-end: 2017-06-06
- time-end: 15:23:13.120200000
- obs_id: G07_046T01_9000001274
- exposure: 26166.2781685
- 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_9000001274cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001274cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,396,744,000 | 565,678,080 |
Size | 3.2 GB
| 539.5 MB
|
Events in quadrant A | 29,571,497 | 3,472,894 |
Events in quadrant B | 23,664,489 | 3,550,220 |
Events in quadrant C | 22,719,323 | 3,431,227 |
Events in quadrant D | 23,660,102 | 3,368,303 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 982 | 0 |
B | 0 | 986 | 0 |
C | 0 | 986 | 0 |
D | 0 | 982 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 118181 | 0 |
B | 0 | 100743 | 0 |
C | 0 | 100499 | 0 |
D | 0 | 103544 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 74 | 0 |
B | 0 | 74 | 0 |
C | 0 | 74 | 0 |
D | 0 | 74 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 48116 | 1249 | 2.595810% |
B | 48271 | 933 | 1.932838% |
C | 48274 | 589 | 1.220118% |
D | 48270 | 761 | 1.576549% |
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 | 56153 | 48566 | 279 | 279 | 0.50% | 0.57% |  |
B | 56153 | 48645 | 8 | 8 | 0.01% | 0.02% |  |
C | 56153 | 48643 | 8 | 8 | 0.01% | 0.02% |  |
D | 56153 | 48633 | 150 | 150 | 0.27% | 0.31% |  |
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 | 4156214 | 3504.94 | 5920 | 5811 | 1184.2 |
A | 15 | 236 | 683087 | 571.95 | 5920 | 5811 | 1184.2 |
A | 15 | 223 | 498542 | 416.1 | 5920 | 5811 | 1184.2 |
B | 0 | 214 | 461586 | 402.81 | 5957 | 5812 | 1131.5 |
B | 12 | 111 | 130418 | 110.13 | 5957 | 5812 | 1131.5 |
B | 11 | 111 | 105912 | 88.47 | 5957 | 5812 | 1131.5 |
C | 9 | 68 | 206804 | 151.07 | 5731 | 5758 | 1330.8 |
C | 14 | 234 | 108950 | 77.54 | 5731 | 5758 | 1330.8 |
C | 13 | 61 | 43271 | 28.19 | 5731 | 5758 | 1330.8 |
D | 1 | 52 | 1128672 | 803.87 | 5761 | 5624 | 1397.1 |
D | 2 | 14 | 213304 | 148.66 | 5761 | 5624 | 1397.1 |
D | 7 | 71 | 193669 | 134.6 | 5761 | 5624 | 1397.1 |
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 |  |