ASTROSAT CZTI

Data Quality Report

Orbit 58386

Creation date: 2026-07-13T17:11:58.144440
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_045T01_9000006590_58386cztM0_level2.fits modeM0/AS1A14_045T01_9000006590_58386cztM0_level2_quad_clean.evt
Size (bytes)692,380,80099,947,520
Size660.3 MB 95.3 MB
Events in quadrant A4,773,312696,716
Events in quadrant B11,165,944513,698
Events in quadrant C3,435,993685,333
Events in quadrant D5,671,307607,180

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193323
B0383830
C0157530
D0217270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75182613.471668%
B7519269235.802633%
C7519270.359090%
D75195206.915813%

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 7518 7518 241 241 3.21% 3.21%
B 7519 7519 2098 2098 27.90% 27.90%
C 7519 7519 24 24 0.32% 0.32%
D 7519 7519 545 545 7.25% 7.25%

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 12 114 525346 2551.86 826 803 205.6
A 13 248 521285 2532.11 826 803 205.6
A 4 249 228664 1108.53 826 803 205.6
B 5 185 4062450 27128.84 694 668 149.7
B 5 172 3475135 23206.13 694 668 149.7
B 2 249 287678 1916.95 694 668 149.7
C 4 5 129923 579.72 809 803 222.7
C 6 13 40722 179.23 809 803 222.7
C 14 254 17023 72.82 809 803 222.7
D 2 249 1294121 5792.31 789 754 223.3
D 11 129 551515 2466.57 789 754 223.3
D 12 128 241872 1079.84 789 754 223.3

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