ASTROSAT CZTI

Data Quality Report

Orbit 45048

Creation date: 2024-06-27T23:09:21.912958
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_020T01_9000006040_45048cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45048cztM0_level2_quad_clean.evt
Size (bytes)721,146,240138,384,000
Size687.7 MB 132.0 MB
Events in quadrant A6,969,573940,670
Events in quadrant B5,331,398946,153
Events in quadrant C4,472,937933,153
Events in quadrant D9,237,612757,266

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0274777
B0219400
C0196150
D03363119

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A88231832.074124%
B88273944.463578%
C88271321.495412%
D8822118513.432328%

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 8826 8825 32 32 0.36% 0.36%
B 8827 8827 168 168 1.90% 1.90%
C 8827 8827 79 79 0.89% 0.89%
D 8827 8825 910 910 10.31% 10.31%

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 2904763 13752.49 1004 981 211.1
A 15 174 104192 488.81 1004 981 211.1
A 13 248 33904 155.93 1004 981 211.1
B 12 48 557884 2879.45 986 957 193.4
B 0 189 233943 1204.59 986 957 193.4
B 5 255 159534 819.88 986 957 193.4
C 14 254 475643 2058.06 986 994 230.6
C 12 250 120188 516.82 986 994 230.6
C 1 3 8946 34.48 986 994 230.6
D 13 174 1612274 6852.08 940 914 235.2
D 13 187 643585 2732.87 940 914 235.2
D 11 241 537522 2281.85 940 914 235.2

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