ASTROSAT CZTI

Data Quality Report

Orbit 20220606_T05_009T03_9000005164_level2

Creation date: 2022-06-08T10:47:14.771282
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

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/AS1T05_009T03_9000005164cztM0_level2_bc.evt modeM0/AS1T05_009T03_9000005164cztM0_level2_quad_clean.evt
Size (bytes)155,589,12055,938,240
Size148.4 MB 53.3 MB
Events in quadrant A854,090357,948
Events in quadrant B1,350,498364,134
Events in quadrant C1,248,989370,084
Events in quadrant D1,009,314350,656

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073170
B096370
C085030
D080350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A354030.084746%
B35401413.983051%
C3540571.610169%
D3540471.327684%

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 5633 3541 0 0 0.00% 0.00%
B 5633 3541 13 13 0.23% 0.37%
C 5633 3540 11 11 0.20% 0.31%
D 5633 3540 2 2 0.04% 0.06%

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 10 83 96572 2236.29 189 186 43.1
A 8 144 14192 324.96 189 186 43.1
A 9 143 6798 153.41 189 186 43.1
B 5 172 276653 7004.59 190 186 39.5
B 4 171 264759 6703.24 190 186 39.5
B 0 213 29731 748.55 190 186 39.5
C 15 208 210812 4576.72 190 188 46.0
C 15 214 150824 3273.22 190 188 46.0
C 0 10 89891 1949.19 190 188 46.0
D 13 249 108934 2351.41 187 180 46.3
D 13 171 29742 639.17 187 180 46.3
D 10 118 21788 467.19 187 180 46.3

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