ASTROSAT CZTI

Data Quality Report

Orbit 59360

Creation date: 2026-09-17T05:27:15.984505
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/AS1A14_033T01_9000006608_59360cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59360cztM0_level2_quad_clean.evt
Size (bytes)589,596,480131,823,360
Size562.3 MB 125.7 MB
Events in quadrant A4,460,946862,624
Events in quadrant B5,360,980908,400
Events in quadrant C5,949,202827,003
Events in quadrant D5,360,692773,564

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01800
B01800
C01800
D01800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194690
B0223030
C0237040
D0224310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8934400.447728%
B89343684.119096%
C89342282.552048%
D89341972.205059%

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 9364 8935 23 23 0.25% 0.26%
B 9364 8935 213 213 2.27% 2.38%
C 9364 8935 145 145 1.55% 1.62%
D 9364 8935 109 109 1.16% 1.22%

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 15 233 178753 726.96 1001 972 244.6
A 13 153 167057 679.13 1001 972 244.6
A 3 245 148050 601.41 1001 972 244.6
B 4 236 700460 3313.7 986 947 211.1
B 4 171 303988 1435.55 986 947 211.1
B 0 186 111424 523.35 986 947 211.1
C 12 252 1283788 4778.19 980 972 268.5
C 6 223 430597 1600.25 980 972 268.5
C 3 233 258079 957.66 980 972 268.5
D 12 110 1197160 4342.8 974 933 275.5
D 5 32 99160 356.6 974 933 275.5
D 2 120 93465 335.93 974 933 275.5

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

TCT plots

Parameter TCT0 TCT_healed
Tct