ASTROSAT CZTI

Data Quality Report

Orbit 20240107_A13_004T12_9000006020_level2

Creation date: 2024-01-09T10:55:25.135027
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/AS1A13_004T12_9000006020cztM0_level2.fits modeM0/AS1A13_004T12_9000006020cztM0_level2_quad_clean.evt
Size (bytes)1,065,173,7601,051,220,160
Size1015.8 MB 1002.5 MB
Events in quadrant A6,018,9585,801,877
Events in quadrant B6,107,7386,276,312
Events in quadrant C6,430,0646,139,933
Events in quadrant D5,253,9125,184,058

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024980
B024980
C024980
D024980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04855010
B03041890
C02646470
D03917960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01610
B01610
C01610
D01610

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1230491683913.684792%
B12304960974.954937%
C12304916631.351494%
D123049114359.293046%

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 139220 122930 0 0 0.00% 0.00%
B 139220 122999 0 0 0.00% 0.00%
C 139220 122980 0 0 0.00% 0.00%
D 139220 122823 0 0 0.00% 0.00%

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 7 110 4906 8.57 1567 1457 402.4
A 0 29 4628 7.88 1567 1457 402.4
A 14 95 4626 7.87 1567 1457 402.4
B 2 9 5777 13.42 1615 1536 315.9
B 2 8 4669 9.92 1615 1536 315.9
B 3 17 4553 9.55 1615 1536 315.9
C 1 81 5047 7.99 1700 1583 433.5
C 3 202 5007 7.9 1700 1583 433.5
C 1 80 4912 7.68 1700 1583 433.5
D 8 176 5418 9.71 1507 1365 417.6
D 3 14 3902 6.08 1507 1365 417.6
D 8 160 3889 6.04 1507 1365 417.6

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