ASTROSAT CZTI

Data Quality Report

Orbit 58332

Creation date: 2026-07-10T10:57:09.153777
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_58332cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58332cztM0_level2_quad_clean.evt
Size (bytes)1,178,075,520261,008,640
Size1.1 GB 248.9 MB
Events in quadrant A9,079,3071,717,612
Events in quadrant B14,267,3071,695,735
Events in quadrant C8,726,9131,653,350
Events in quadrant D10,097,1631,555,996

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03780
B03780
C03780
D03780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0402483
B0552125
C0399193
D0426003

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A185681460.786299%
B1856717359.344536%
C185671410.759412%
D185681460.786299%

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 19988 18571 66 66 0.33% 0.36%
B 19987 18570 977 977 4.89% 5.26%
C 19987 18570 79 79 0.40% 0.43%
D 19988 18571 132 132 0.66% 0.71%

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 372214 752.9 1995 1945 491.8
A 7 64 326092 659.12 1995 1945 491.8
A 7 160 117867 235.71 1995 1945 491.8
B 4 206 2880950 7129.7 1900 1829 403.8
B 10 128 2236704 5534.33 1900 1829 403.8
B 4 201 254655 626.08 1900 1829 403.8
C 12 252 330412 614.51 1946 1931 534.5
C 15 147 153178 282.95 1946 1931 534.5
C 13 3 117625 216.44 1946 1931 534.5
D 3 12 605274 1111.21 1937 1855 543.0
D 11 129 576003 1057.3 1937 1855 543.0
D 12 110 389271 713.43 1937 1855 543.0

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