ASTROSAT CZTI

Data Quality Report

Orbit 59380

Creation date: 2026-09-18T14:17:28.709951
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_59380cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59380cztM0_level2_quad_clean.evt
Size (bytes)487,514,88095,140,800
Size464.9 MB 90.7 MB
Events in quadrant A3,113,271622,740
Events in quadrant B3,663,555670,559
Events in quadrant C3,067,615613,231
Events in quadrant D7,687,078512,099

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141081
B0153851
C0140251
D0275031

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6627781.177003%
B66271932.912328%
C6628340.512975%
D662890913.714544%

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 7537 6627 42 42 0.56% 0.63%
B 7537 6627 97 97 1.29% 1.46%
C 7538 6628 21 21 0.28% 0.32%
D 7538 6628 877 877 11.63% 13.23%

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 10 251 256423 1470.93 715 697 173.9
A 4 3 35437 199.82 715 697 173.9
A 3 14 19905 110.48 715 697 173.9
B 4 236 276504 1824.82 706 679 151.2
B 5 185 165336 1089.35 706 679 151.2
B 4 201 133847 881.02 706 679 151.2
C 6 223 159542 829.04 700 695 191.6
C 14 246 33704 172.28 700 695 191.6
C 12 252 29475 150.21 700 695 191.6
D 12 110 3692116 19635.0 664 636 188.0
D 1 27 852188 4529.41 664 636 188.0
D 3 12 206027 1092.48 664 636 188.0

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

TCT plots

Parameter TCT0 TCT_healed
Tct