Observation information
- date-obs: 2016-03-19
- time-obs: 10:49:10.796900000
- date-end: 2016-03-21
- time-end: 16:18:56.703400000
- obs_id: T01_071T01_9000000382
- exposure: 104743.307243
- sourceid: NGC 1851
- observer: annapurni
- ra_pnt: 78.52817
- dec_pnt: -40.04655
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T01_071T01_9000000382cztM0_level2.evt
| modeM0/AS1T01_071T01_9000000382cztM0_level2_quad_clean.evt
|
Size (bytes) | 11,314,454,400 | 2,011,086,720 |
Size | 10.5 GB
| 1.9 GB
|
Events in quadrant A | 77,642,982 | 12,290,463 |
Events in quadrant B | 80,252,569 | 12,570,091 |
Events in quadrant C | 79,852,380 | 12,435,289 |
Events in quadrant D | 93,383,862 | 11,918,216 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 219 | 0 |
B | 0 | 219 | 0 |
C | 0 | 219 | 0 |
D | 0 | 219 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3472 | 0 |
B | 0 | 3472 | 0 |
C | 0 | 3472 | 0 |
D | 0 | 3472 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 353142 | 0 |
B | 0 | 356971 | 0 |
C | 0 | 360596 | 0 |
D | 0 | 397888 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 170806 | 2420 | 1.416812% |
B | 170806 | 2511 | 1.470089% |
C | 170806 | 2397 | 1.403346% |
D | 170806 | 3534 | 2.069014% |
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 | 192588 | 170841 | 65 | 65 | 0.03% | 0.04% |  |
B | 192588 | 170841 | 146 | 146 | 0.08% | 0.09% |  |
C | 192588 | 170841 | 485 | 485 | 0.25% | 0.28% |  |
D | 192588 | 170841 | 1556 | 1556 | 0.81% | 0.91% |  |
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 | 14 | 238 | 1061874 | 260.65 | 19731 | 19265 | 4000.0 |
A | 3 | 1 | 441313 | 105.51 | 19731 | 19265 | 4000.0 |
A | 12 | 194 | 220352 | 50.27 | 19731 | 19265 | 4000.0 |
B | 10 | 244 | 785002 | 201.48 | 20051 | 19532 | 3799.2 |
B | 4 | 48 | 399825 | 100.1 | 20051 | 19532 | 3799.2 |
B | 15 | 85 | 367960 | 91.71 | 20051 | 19532 | 3799.2 |
C | 9 | 144 | 1295008 | 288.86 | 19131 | 19191 | 4416.7 |
C | 9 | 70 | 1011210 | 224.61 | 19131 | 19191 | 4416.7 |
C | 12 | 254 | 776496 | 171.46 | 19131 | 19191 | 4416.7 |
D | 2 | 184 | 5915040 | 1304.88 | 18936 | 18402 | 4518.9 |
D | 2 | 255 | 5236189 | 1154.66 | 18936 | 18402 | 4518.9 |
D | 2 | 54 | 1541392 | 337.03 | 18936 | 18402 | 4518.9 |
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 |  |