ASTROSAT CZTI

Data Quality Report

Orbit 53033

Creation date: 2025-07-18T12:14:03.028846
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_53033cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53033cztM0_level2_quad_clean.evt
Size (bytes)681,456,96082,474,560
Size649.9 MB 78.7 MB
Events in quadrant A6,098,993532,941
Events in quadrant B3,646,183623,339
Events in quadrant C6,032,993526,294
Events in quadrant D8,967,030380,882

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226121
B0151011
C0222941
D0309711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A620284513.624637%
B62032133.433822%
C620367110.817346%
D6203203132.742222%

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 7322 6203 778 778 10.63% 12.54%
B 7323 6203 132 132 1.80% 2.13%
C 7323 6204 681 681 9.30% 10.98%
D 7323 6203 2057 2057 28.09% 33.16%

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 1420035 9360.44 602 588 151.6
A 7 206 1016524 6699.52 602 588 151.6
A 15 190 441599 2908.22 602 588 151.6
B 10 63 177929 1331.77 623 603 133.2
B 2 249 175586 1314.17 623 603 133.2
B 4 81 137728 1029.85 623 603 133.2
C 15 224 1968512 12098.26 589 586 162.7
C 7 80 790219 4854.45 589 586 162.7
C 1 241 348802 2140.74 589 586 162.7
D 2 153 3004222 20564.39 505 481 146.1
D 12 17 1947575 13330.31 505 481 146.1
D 8 176 992961 6794.77 505 481 146.1

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