ASTROSAT CZTI

Data Quality Report

Orbit 53062

Creation date: 2025-07-20T10:07:28.059570
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_53062cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53062cztM0_level2_quad_clean.evt
Size (bytes)710,081,28091,546,560
Size677.2 MB 87.3 MB
Events in quadrant A5,411,413622,623
Events in quadrant B4,400,254676,334
Events in quadrant C8,633,127478,701
Events in quadrant D7,325,894530,570

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205921
B0177731
C0303121
D0264201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66494266.406978%
B66492473.714844%
C6650175526.390977%
D664984612.723718%

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 7794 6650 388 388 4.98% 5.83%
B 7794 6650 179 179 2.30% 2.69%
C 7795 6651 1629 1629 20.90% 24.49%
D 7794 6650 863 863 11.07% 12.98%

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 7 206 1352147 8066.25 672 657 167.5
A 9 191 1107422 6605.63 672 657 167.5
A 15 190 84297 499.2 672 657 167.5
B 1 255 1034488 7188.5 677 654 143.8
B 4 81 253089 1755.24 677 654 143.8
B 10 254 170124 1178.36 677 654 143.8
C 15 224 2844330 17744.02 583 578 160.3
C 1 241 2779564 17339.9 583 578 160.3
C 15 244 201960 1256.55 583 578 160.3
D 11 245 1665559 9133.02 629 600 182.3
D 12 17 874014 4791.05 629 600 182.3
D 15 78 538014 2947.95 629 600 182.3

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