ASTROSAT CZTI

Data Quality Report

Orbit 58329

Creation date: 2026-07-10T10:39:02.560438
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_044T03_9000006588_58329cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58329cztM0_level2_quad_clean.evt
Size (bytes)501,007,680109,679,040
Size477.8 MB 104.6 MB
Events in quadrant A4,055,816715,081
Events in quadrant B5,567,208752,916
Events in quadrant C3,861,072688,673
Events in quadrant D4,468,134632,779

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174410
B0217766
C0170220
D0184270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76401071.400524%
B76403324.345550%
C7640470.615183%
D76402262.958115%

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 7640 7640 77 77 1.01% 1.01%
B 7640 7640 160 160 2.09% 2.09%
C 7640 7640 34 34 0.45% 0.45%
D 7640 7640 199 199 2.60% 2.60%

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 13 248 449319 2164.01 831 809 207.3
A 4 249 74519 355.64 831 809 207.3
A 4 238 56486 268.63 831 809 207.3
B 10 128 1252729 7190.65 813 783 174.1
B 4 206 272770 1562.18 813 783 174.1
B 5 185 192379 1100.44 813 783 174.1
C 12 252 308783 1386.08 809 800 222.2
C 8 7 159320 713.42 809 800 222.2
C 13 3 91973 410.32 809 800 222.2
D 7 222 420861 1849.92 802 766 227.1
D 11 129 234869 1030.89 802 766 227.1
D 2 31 185340 812.79 802 766 227.1

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