ASTROSAT CZTI

Data Quality Report

Orbit 20160813_G05_207T01_9000000596_level2

Creation date: 2016-09-06T17:47:40.199878
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_207T01_9000000596cztM0_level2_bc.evt modeM0/AS1G05_207T01_9000000596cztM0_level2_quad_clean.evt
Size (bytes)1,645,508,160494,167,680
Size1.5 GB 471.3 MB
Events in quadrant A7,860,5403,144,879
Events in quadrant B9,553,8263,179,654
Events in quadrant C18,475,0352,840,088
Events in quadrant D11,123,5792,964,128

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08460
B08460
C08460
D08460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0853350
B0896400
C01364120
D0972080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0590
B0590
C0590
D0590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A413046961.685067%
B413048812.132965%
C41304598014.478017%
D4130415843.834980%

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 47374 41302 2 2 0.00% 0.00%
B 47374 41300 45 45 0.09% 0.11%
C 47374 41301 383 383 0.81% 0.93%
D 47374 41301 196 196 0.41% 0.47%

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 7 16 161785 360.18 1979 1930 443.8
A 0 50 34726 73.89 1979 1930 443.8
A 13 14 34562 73.52 1979 1930 443.8
B 14 167 1341704 3423.57 2012 1948 391.3
B 4 80 268188 680.34 2012 1948 391.3
B 15 204 166858 421.4 2012 1948 391.3
C 14 48 10998017 27075.93 1813 1774 406.1
C 8 208 219022 534.93 1813 1774 406.1
C 7 190 68269 163.73 1813 1774 406.1
D 13 53 980416 2198.14 1920 1841 445.2
D 1 31 717213 1606.92 1920 1841 445.2
D 13 239 615475 1378.39 1920 1841 445.2

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