ASTROSAT CZTI

Data Quality Report

Orbit 59327

Creation date: 2026-09-14T23:28:31.451215
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_021T06_9000006606_59327cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59327cztM0_level2_quad_clean.evt
Size (bytes)402,056,64091,272,960
Size383.4 MB 87.0 MB
Events in quadrant A2,840,745612,618
Events in quadrant B5,296,612605,170
Events in quadrant C2,902,164580,497
Events in quadrant D3,378,047547,781

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127661
B0197832
C0129471
D0140451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59791011.689246%
B597976112.727881%
C5979991.655795%
D5979841.404917%

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 7179 5980 39 39 0.54% 0.65%
B 7179 5980 551 551 7.68% 9.21%
C 7179 5980 42 42 0.59% 0.70%
D 7179 5980 67 67 0.93% 1.12%

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 15 233 194526 1205.47 654 639 160.8
A 7 64 31732 193.32 654 639 160.8
A 10 251 14998 89.28 654 639 160.8
B 4 236 1239201 9374.14 627 605 132.1
B 4 171 729272 5514.81 627 605 132.1
B 5 236 246988 1864.71 627 605 132.1
C 15 200 96353 540.62 644 637 177.0
C 14 254 95999 538.62 644 637 177.0
C 7 2 82886 464.55 644 637 177.0
D 3 12 535010 2904.14 641 609 184.0
D 12 2 159854 865.4 641 609 184.0
D 12 248 57503 309.18 641 609 184.0

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