ASTROSAT CZTI

Data Quality Report

Orbit 29056

Creation date: 2024-06-27T19:59:45.459566
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/AS1C05_019T04_9000004162_29056cztM0_level2.evt modeM0/AS1C05_019T04_9000004162_29056cztM0_level2_quad_clean.evt
Size (bytes)560,430,720129,628,800
Size534.5 MB 123.6 MB
Events in quadrant A3,591,583856,601
Events in quadrant B3,788,622874,413
Events in quadrant C3,672,905850,994
Events in quadrant D5,393,704805,011

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160291
B0165561
C0161381
D0214201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7758841.082753%
B77591832.358551%
C77591411.817244%
D77593704.768656%

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 7842 7758 0 0 0.00% 0.00%
B 7844 7759 27 27 0.34% 0.35%
C 7844 7759 0 0 0.00% 0.00%
D 7844 7760 245 245 3.12% 3.16%

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 1 113 20084 102.6 924 904 186.9
A 13 254 13234 65.96 924 904 186.9
A 3 137 9376 45.32 924 904 186.9
B 10 246 96644 540.9 920 896 177.0
B 10 245 45633 252.73 920 896 177.0
B 12 111 22446 121.74 920 896 177.0
C 14 238 143955 687.16 892 897 208.2
C 3 233 30313 141.3 892 897 208.2
C 2 114 18020 82.25 892 897 208.2
D 1 52 1226047 5786.12 881 854 211.7
D 8 195 634643 2993.15 881 854 211.7
D 2 250 184750 868.47 881 854 211.7

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