ASTROSAT CZTI

Data Quality Report

Orbit 32298

Creation date: 2024-06-27T20:38:35.621037
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_005T01_9000004700_32298cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32298cztM0_level2_quad_clean.evt
Size (bytes)682,116,48086,397,120
Size650.5 MB 82.4 MB
Events in quadrant A3,821,281543,679
Events in quadrant B6,148,508529,575
Events in quadrant C4,249,135511,656
Events in quadrant D5,911,180488,405

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163203
B0239642
C0172992
D0230002

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77981832.346756%
B77983464.437035%
C77982683.436779%
D77984495.757887%

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 8828 7800 1 1 0.01% 0.01%
B 8828 7800 11 11 0.12% 0.14%
C 8828 7800 6 6 0.07% 0.08%
D 8828 7800 257 257 2.91% 3.29%

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 6 21072 102.41 975 950 196.5
A 13 254 18732 90.5 975 950 196.5
A 12 96 16010 76.64 975 950 196.5
B 6 159 2158854 11614.93 958 931 185.8
B 0 190 80444 427.98 958 931 185.8
B 5 172 36710 192.58 958 931 185.8
C 3 233 209057 940.16 935 937 221.4
C 14 238 160055 718.8 935 937 221.4
C 15 159 142189 638.09 935 937 221.4
D 8 195 1241704 5524.94 931 902 224.6
D 10 199 488997 2173.35 931 902 224.6
D 13 174 370925 1647.61 931 902 224.6

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