ASTROSAT CZTI

Data Quality Report

Orbit 11322

Creation date: 2024-06-27T16:11:17.826709
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/AS1G08_028T01_9000001656_11322cztM0_level2.evt modeM0/AS1G08_028T01_9000001656_11322cztM0_level2_quad_clean.evt
Size (bytes)745,511,04072,267,840
Size711.0 MB 68.9 MB
Events in quadrant A7,715,815397,071
Events in quadrant B4,718,541435,344
Events in quadrant C3,575,291441,547
Events in quadrant D6,073,452404,748

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276563
B0188122
C0156952
D0230082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7311197226.973054%
B73114656.360279%
C73111361.860211%
D731184811.598960%

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 7691 7312 1134 1134 14.74% 15.51%
B 7691 7312 171 171 2.22% 2.34%
C 7691 7312 36 36 0.47% 0.49%
D 7691 7312 611 611 7.94% 8.36%

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 14 238 4360405 27976.47 750 735 155.8
A 8 5 119157 759.93 750 735 155.8
A 15 174 103381 658.69 750 735 155.8
B 4 239 769899 4488.22 879 855 171.3
B 3 64 203512 1182.73 879 855 171.3
B 0 168 109980 636.86 879 855 171.3
C 9 204 200717 981.35 864 867 203.6
C 13 61 6366 27.0 864 867 203.6
C 9 54 5028 20.43 864 867 203.6
D 10 253 1286825 6591.92 802 780 195.1
D 7 80 551934 2825.07 802 780 195.1
D 2 120 443772 2270.66 802 780 195.1

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