ASTROSAT CZTI

Data Quality Report

Orbit 57410

Creation date: 2026-05-09T01:09:20.220742
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_102T01_9000006572_57410cztM0_level2.fits modeM0/AS1A14_102T01_9000006572_57410cztM0_level2_quad_clean.evt
Size (bytes)551,623,68086,417,280
Size526.1 MB 82.4 MB
Events in quadrant A4,712,991579,331
Events in quadrant B3,635,573615,685
Events in quadrant C7,418,744453,695
Events in quadrant D4,132,741500,946

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185862
B0154292
C0267642
D0171042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6692711.060968%
B6693791.180338%
C6693144021.515016%
D66922093.123132%

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 7946 6967 14 14 0.18% 0.20%
B 7947 6968 39 39 0.49% 0.56%
C 7947 6955 1197 1197 15.06% 17.21%
D 7946 6967 173 173 2.18% 2.48%

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 12 1836863 10420.4 716 700 176.2
A 3 14 30607 169.73 716 700 176.2
A 4 3 23326 128.4 716 700 176.2
B 0 216 291034 1947.44 706 682 149.1
B 5 185 166677 1113.36 706 682 149.1
B 0 63 128098 854.6 706 682 149.1
C 15 224 3646298 21794.24 615 608 167.3
C 12 249 969214 5790.41 615 608 167.3
C 6 223 108994 647.94 615 608 167.3
D 8 240 698025 3609.86 680 647 193.2
D 3 12 238951 1233.54 680 647 193.2
D 3 224 182946 943.64 680 647 193.2

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