ASTROSAT CZTI

Data Quality Report

Orbit 54717

Creation date: 2025-11-11T17:59:38.981594
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_103T01_9000006524_54717cztM0_level2.fits modeM0/AS1A14_103T01_9000006524_54717cztM0_level2_quad_clean.evt
Size (bytes)501,724,80095,970,240
Size478.5 MB 91.5 MB
Events in quadrant A3,408,821641,497
Events in quadrant B4,588,121651,719
Events in quadrant C4,302,809597,400
Events in quadrant D5,740,040538,177

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151641
B0185863
C0179421
D0217781

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68501321.927007%
B68494766.949920%
C68503124.554745%
D685069910.204380%

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 7850 6851 58 58 0.74% 0.85%
B 7849 6849 324 324 4.13% 4.73%
C 7850 6851 252 252 3.21% 3.68%
D 7850 6851 589 589 7.50% 8.60%

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 4 206 332710 1870.61 715 697 177.5
A 3 14 123162 689.99 715 697 177.5
A 7 190 66054 368.23 715 697 177.5
B 2 249 1487262 10115.76 690 667 147.0
B 4 171 199126 1350.44 690 667 147.0
B 7 252 79287 534.98 690 667 147.0
C 9 38 924826 4892.49 685 680 188.9
C 14 254 252842 1334.96 685 680 188.9
C 13 3 132389 697.28 685 680 188.9
D 3 12 2150269 11213.19 673 645 191.7
D 11 129 479304 2496.85 673 645 191.7
D 5 173 59165 305.26 673 645 191.7

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