ASTROSAT CZTI

Data Quality Report

Orbit 57063

Creation date: 2026-04-15T17:02:37.978046
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_083T10_9000006566_57063cztM0_level2.fits modeM0/AS1A14_083T10_9000006566_57063cztM0_level2_quad_clean.evt
Size (bytes)510,370,560100,186,560
Size486.7 MB 95.5 MB
Events in quadrant A3,210,955659,717
Events in quadrant B3,226,513719,020
Events in quadrant C3,638,565636,109
Events in quadrant D8,275,426533,361

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148740
B0145790
C0160280
D0294470

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6963981.407439%
B6964731.048248%
C69641101.579552%
D6964110115.809879%

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 6963 6963 60 60 0.86% 0.86%
B 6964 6964 6 6 0.09% 0.09%
C 6964 6964 74 74 1.06% 1.06%
D 6964 6964 1059 1059 15.21% 15.21%

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 0 250 182205 969.31 764 744 187.2
A 4 3 18724 96.04 764 744 187.2
A 13 248 14295 72.38 764 744 187.2
B 0 152 78752 484.88 752 724 160.9
B 0 63 42112 257.19 752 724 160.9
B 7 252 31547 191.54 752 724 160.9
C 6 223 365127 1821.09 738 730 200.1
C 12 254 103514 513.66 738 730 200.1
C 14 67 77758 384.95 738 730 200.1
D 15 142 2761204 13874.64 712 681 199.0
D 12 33 2413010 12124.58 712 681 199.0
D 8 240 83667 417.1 712 681 199.0

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