ASTROSAT CZTI

Data Quality Report

Orbit 57529

Creation date: 2026-05-17T01:16:19.362336
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_113T09_9000006574_57529cztM0_level2.fits modeM0/AS1A14_113T09_9000006574_57529cztM0_level2_quad_clean.evt
Size (bytes)481,118,400109,586,880
Size458.8 MB 104.5 MB
Events in quadrant A4,476,852719,432
Events in quadrant B3,883,388762,679
Events in quadrant C5,294,195652,760
Events in quadrant D3,562,869653,031

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188050
B0168441
C0212230
D0161660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7623280.367309%
B7622560.734715%
C76223835.024928%
D7623210.275482%

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 7623 7623 20 20 0.26% 0.26%
B 7622 7622 23 23 0.30% 0.30%
C 7622 7622 306 306 4.01% 4.01%
D 7623 7623 19 19 0.25% 0.25%

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 3 14 1169826 5854.16 814 793 199.7
A 7 14 74630 369.75 814 793 199.7
A 3 245 29110 141.8 814 793 199.7
B 4 206 271278 1569.29 801 771 172.4
B 0 245 73224 420.32 801 771 172.4
B 7 252 57115 326.87 801 771 172.4
C 15 224 1614886 7670.18 766 758 210.4
C 14 245 306056 1450.75 766 758 210.4
C 12 252 220155 1042.55 766 758 210.4
D 3 12 101391 454.79 787 752 221.3
D 5 173 72779 325.49 787 752 221.3
D 7 253 52028 231.72 787 752 221.3

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