Observation information
- date-obs: 2017-04-16
- time-obs: 12:09:30.402000000
- date-end: 2017-04-16
- time-end: 16:26:42.398700000
- obs_id: G07_076T04_9000001172
- exposure: 8937.14164925
- sourceid: NGC 4169
- observer: kanak
- ra_pnt: 183.1353
- dec_pnt: 29.16711
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G07_076T04_9000001172cztM0_level2.evt
| modeM0/AS1G07_076T04_9000001172cztM0_level2_quad_clean.evt
|
Size (bytes) | 979,626,240 | 172,074,240 |
Size | 934.2 MB
| 164.1 MB
|
Events in quadrant A | 6,893,112 | 1,063,662 |
Events in quadrant B | 7,826,983 | 1,066,917 |
Events in quadrant C | 6,851,330 | 1,046,903 |
Events in quadrant D | 7,105,095 | 1,023,786 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 298 | 0 |
B | 0 | 298 | 0 |
C | 0 | 298 | 0 |
D | 0 | 298 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30545 | 0 |
B | 0 | 32855 | 0 |
C | 0 | 30572 | 0 |
D | 0 | 31455 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 14633 | 489 | 3.341762% |
B | 14633 | 563 | 3.847468% |
C | 14633 | 352 | 2.405522% |
D | 14633 | 368 | 2.514864% |
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 | 15433 | 14634 | 0 | 0 | 0.00% | 0.00% |  |
B | 15433 | 14634 | 38 | 38 | 0.25% | 0.26% |  |
C | 15433 | 14635 | 4 | 4 | 0.03% | 0.03% |  |
D | 15433 | 14635 | 27 | 27 | 0.17% | 0.18% |  |
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 | 0 | 226 | 16606 | 40.68 | 1790 | 1746 | 365.3 |
A | 12 | 194 | 16098 | 39.29 | 1790 | 1746 | 365.3 |
A | 15 | 236 | 8484 | 18.45 | 1790 | 1746 | 365.3 |
B | 4 | 48 | 605337 | 1746.73 | 1790 | 1748 | 345.6 |
B | 0 | 214 | 125855 | 359.15 | 1790 | 1748 | 345.6 |
B | 4 | 81 | 54854 | 153.68 | 1790 | 1748 | 345.6 |
C | 1 | 16 | 24821 | 56.86 | 1742 | 1744 | 405.9 |
C | 8 | 128 | 20442 | 46.07 | 1742 | 1744 | 405.9 |
C | 13 | 61 | 13333 | 28.55 | 1742 | 1744 | 405.9 |
D | 1 | 52 | 118379 | 250.96 | 1733 | 1686 | 465.0 |
D | 2 | 14 | 88306 | 186.29 | 1733 | 1686 | 465.0 |
D | 12 | 233 | 71733 | 150.64 | 1733 | 1686 | 465.0 |
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 |  |