ASTROSAT CZTI

Data Quality Report

Orbit 53034

Creation date: 2025-07-18T13:30:13.806411
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/AS1C09_011T07_9000006488_53034cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53034cztM0_level2_quad_clean.evt
Size (bytes)676,823,04077,541,120
Size645.5 MB 73.9 MB
Events in quadrant A7,568,956453,684
Events in quadrant B3,011,925601,575
Events in quadrant C5,532,258504,523
Events in quadrant D8,491,130381,362

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265661
B0130341
C0205311
D0292781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5814139624.011008%
B5815871.496131%
C58155058.684437%
D5815170229.269132%

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 6989 5814 1297 1297 18.56% 22.31%
B 6990 5815 49 49 0.70% 0.84%
C 6990 5815 478 478 6.84% 8.22%
D 6990 5815 1815 1815 25.97% 31.21%

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 9 191 2513218 18567.82 543 532 135.3
A 7 206 1980411 14630.57 543 532 135.3
A 3 62 610623 4508.35 543 532 135.3
B 10 63 139521 1118.96 593 575 124.2
B 10 44 78201 625.14 593 575 124.2
B 0 213 78122 624.5 593 575 124.2
C 15 224 1446760 9355.31 560 555 154.6
C 7 80 1232944 7972.17 560 555 154.6
C 1 241 246496 1590.96 560 555 154.6
D 8 176 2098091 14188.66 506 481 147.8
D 2 153 2047763 13848.23 506 481 147.8
D 2 172 942989 6375.31 506 481 147.8

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