ASTROSAT CZTI

Data Quality Report

Orbit 53110

Creation date: 2025-07-23T18:03:24.778683
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_53110cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53110cztM0_level2_quad_clean.evt
Size (bytes)464,091,84048,683,520
Size442.6 MB 46.4 MB
Events in quadrant A6,920,058207,065
Events in quadrant B3,571,592362,798
Events in quadrant C4,197,445306,206
Events in quadrant D2,184,752320,119

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232560
B0134040
C0152120
D095170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3927186647.517189%
B39273368.556150%
C392855114.027495%
D3928681.731161%

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 3926 3926 1792 1792 45.64% 45.64%
B 3927 3927 307 307 7.82% 7.82%
C 3928 3928 592 592 15.07% 15.07%
D 3928 3928 63 63 1.60% 1.60%

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 4936038 62782.88 310 302 78.6
A 12 80 323132 4106.42 310 302 78.6
A 0 8 136888 1737.38 310 302 78.6
B 10 28 909970 11295.74 369 356 80.5
B 10 254 564478 7005.36 369 356 80.5
B 4 171 285213 3537.4 369 356 80.5
C 15 224 1580637 16250.38 349 346 97.2
C 0 240 597404 6139.64 349 346 97.2
C 7 80 138286 1418.46 349 346 97.2
D 2 62 245373 2304.05 368 352 106.3
D 10 172 132567 1243.28 368 352 106.3
D 2 120 108871 1020.45 368 352 106.3

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