ASTROSAT CZTI

Data Quality Report

Orbit 58232

Creation date: 2026-07-03T13:08:07.616674
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_044T03_9000006588_58232cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58232cztM0_level2_quad_clean.evt
Size (bytes)529,868,16093,015,360
Size505.3 MB 88.7 MB
Events in quadrant A3,143,274620,893
Events in quadrant B4,741,498650,481
Events in quadrant C3,162,446605,119
Events in quadrant D8,049,022474,529

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142831
B0185951
C0142561
D0285961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6670761.139430%
B66703164.737631%
C6669450.674764%
D6670127719.145427%

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 7681 6732 30 30 0.39% 0.45%
B 7681 6732 161 161 2.10% 2.39%
C 7680 6731 32 32 0.42% 0.48%
D 7681 6729 1309 1309 17.04% 19.45%

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 13 248 158530 888.87 720 700 177.6
A 3 14 95023 531.21 720 700 177.6
A 8 26 39316 217.48 720 700 177.6
B 10 128 710833 4696.64 704 677 151.2
B 2 249 527033 3481.07 704 677 151.2
B 8 128 130568 859.04 704 677 151.2
C 6 223 182287 933.41 704 698 194.5
C 12 252 98706 503.78 704 698 194.5
C 12 249 49161 249.11 704 698 194.5
D 12 110 2308053 12526.64 638 607 184.2
D 12 248 1470750 7981.1 638 607 184.2
D 8 240 605691 3284.87 638 607 184.2

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