Observation information
- date-obs: 2017-12-29
- time-obs: 20:16:09.642500000
- date-end: 2017-12-30
- time-end: 08:50:42.657700000
- obs_id: G08_010T03_9000001800
- exposure: 24983.6091526
- sourceid: ngc 2841
- observer: jmurthy
- ra_pnt: 140.5111
- dec_pnt: 50.97648
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G08_010T03_9000001800cztM0_level2_bc.evt
| modeM0/AS1G08_010T03_9000001800cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,569,844,800 | 500,535,360 |
Size | 1.5 GB
| 477.3 MB
|
Events in quadrant A | 9,202,868 | 3,168,975 |
Events in quadrant B | 13,220,440 | 3,107,875 |
Events in quadrant C | 8,327,429 | 3,131,719 |
Events in quadrant D | 14,034,569 | 2,976,200 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 90974 | 0 |
B | 0 | 106792 | 0 |
C | 0 | 84134 | 0 |
D | 0 | 104739 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 828 | 0 |
B | 0 | 828 | 0 |
C | 0 | 828 | 0 |
D | 0 | 828 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 46 | 0 |
B | 0 | 46 | 0 |
C | 0 | 46 | 0 |
D | 0 | 46 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 40394 | 597 | 1.477942% |
B | 40394 | 2669 | 6.607417% |
C | 40394 | 261 | 0.646136% |
D | 40394 | 1646 | 4.074863% |
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 | 45275 | 40395 | 3 | 3 | 0.01% | 0.01% |  |
B | 45275 | 40385 | 73 | 73 | 0.16% | 0.18% |  |
C | 45275 | 40396 | 10 | 10 | 0.02% | 0.02% |  |
D | 45275 | 40391 | 318 | 318 | 0.70% | 0.79% |  |
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 | 469831 | 1071.07 | 2016 | 1975 | 436.8 |
A | 8 | 15 | 282003 | 641.07 | 2016 | 1975 | 436.8 |
A | 13 | 251 | 249819 | 567.39 | 2016 | 1975 | 436.8 |
B | 4 | 239 | 4036778 | 10684.21 | 1957 | 1902 | 377.6 |
B | 15 | 204 | 775682 | 2048.94 | 1957 | 1902 | 377.6 |
B | 11 | 51 | 303624 | 798.95 | 1957 | 1902 | 377.6 |
C | 15 | 208 | 435879 | 1005.37 | 1954 | 1925 | 431.6 |
C | 5 | 112 | 131010 | 299.06 | 1954 | 1925 | 431.6 |
C | 4 | 175 | 28094 | 60.63 | 1954 | 1925 | 431.6 |
D | 1 | 52 | 3471974 | 7673.75 | 1948 | 1883 | 452.2 |
D | 10 | 157 | 653992 | 1442.07 | 1948 | 1883 | 452.2 |
D | 4 | 95 | 477266 | 1051.26 | 1948 | 1883 | 452.2 |
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 |  |