ASTROSAT CZTI

Data Quality Report

Orbit 29429

Creation date: 2024-06-27T20:04:03.893683
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/AS1A10_102T05_9000004232_29429cztM0_level2.evt modeM0/AS1A10_102T05_9000004232_29429cztM0_level2_quad_clean.evt
Size (bytes)750,905,28082,033,920
Size716.1 MB 78.2 MB
Events in quadrant A3,125,038546,613
Events in quadrant B3,217,827556,334
Events in quadrant C10,232,288447,790
Events in quadrant D5,757,342509,870

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125681
B0129191
C0346821
D0213891

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6050651.074380%
B6050851.404959%
C6050315352.115702%
D60503515.801653%

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 7240 6051 0 0 0.00% 0.00%
B 7240 6051 7 7 0.10% 0.12%
C 7240 6051 2200 2200 30.39% 36.36%
D 7240 6051 283 283 3.91% 4.68%

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 13 254 11310 64.54 810 795 162.9
A 3 137 7482 41.05 810 795 162.9
A 0 226 7036 38.31 810 795 162.9
B 10 245 36287 236.76 790 772 150.0
B 0 190 25592 165.46 790 772 150.0
B 12 111 17779 113.38 790 772 150.0
C 3 233 7604069 50533.67 645 650 150.5
C 14 238 101329 669.13 645 650 150.5
C 2 114 11941 75.04 645 650 150.5
D 1 52 1827034 9923.5 768 748 184.0
D 8 195 418687 2270.96 768 748 184.0
D 13 104 379003 2055.33 768 748 184.0

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