ASTROSAT CZTI

Data Quality Report

Orbit 22093

Creation date: 2024-06-27T18:36:18.842511
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/AS1A07_007T05_9000003274_22093cztM0_level2.evt modeM0/AS1A07_007T05_9000003274_22093cztM0_level2_quad_clean.evt
Size (bytes)424,730,88069,632,640
Size405.1 MB 66.4 MB
Events in quadrant A2,615,909439,858
Events in quadrant B2,718,288445,730
Events in quadrant C2,680,796428,342
Events in quadrant D4,474,313409,513

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114771
B0116831
C0115221
D0171901

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5498480.873045%
B5498731.327756%
C5498871.582394%
D54983035.511095%

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 5783 5499 2 2 0.03% 0.04%
B 5783 5499 4 4 0.07% 0.07%
C 5783 5499 0 0 0.00% 0.00%
D 5783 5499 225 225 3.89% 4.09%

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 15 174 18080 128.34 673 659 135.7
A 13 254 9248 63.28 673 659 135.7
A 0 226 5786 37.77 673 659 135.7
B 0 190 45784 352.31 668 651 128.1
B 3 64 31517 240.94 668 651 128.1
B 12 111 15794 118.21 668 651 128.1
C 14 238 100043 648.77 645 648 153.2
C 0 239 59816 386.2 645 648 153.2
C 13 61 4497 25.12 645 648 153.2
D 1 52 1858257 11844.34 640 620 156.8
D 13 172 49528 311.84 640 620 156.8
D 2 16 46235 290.84 640 620 156.8

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