ASTROSAT CZTI

Data Quality Report

Orbit 47174

Creation date: 2024-06-27T23:32:28.993896
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_003T01_9000006298_47174cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47174cztM0_level2_quad_clean.evt
Size (bytes)529,948,800108,408,960
Size505.4 MB 103.4 MB
Events in quadrant A6,574,325712,153
Events in quadrant B3,453,717743,917
Events in quadrant C3,248,548714,330
Events in quadrant D5,797,172624,021

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242410
B0151780
C0149550
D0220840

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70004266.085714%
B70002954.214286%
C70011662.371090%
D70015798.270247%

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 7000 7000 2 2 0.03% 0.03%
B 7000 7000 13 13 0.19% 0.19%
C 7001 7001 15 15 0.21% 0.21%
D 7001 7001 313 313 4.47% 4.47%

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 10 83 3509657 21570.3 781 764 162.7
A 9 191 21684 128.6 781 764 162.7
A 13 254 13085 75.74 781 764 162.7
B 4 21 148887 965.15 781 755 153.5
B 0 200 59221 380.94 781 755 153.5
B 0 183 52297 335.82 781 755 153.5
C 14 254 171205 949.84 765 765 179.4
C 15 208 50709 278.33 765 765 179.4
C 12 2 21076 113.19 765 765 179.4
D 6 112 1148589 6129.95 750 722 187.3
D 1 47 863984 4610.07 750 722 187.3
D 2 249 465525 2482.18 750 722 187.3

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