ASTROSAT CZTI

Data Quality Report

Orbit 45810

Creation date: 2024-06-27T23:16:25.989006
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/AS1T05_088T01_9000006126_45810cztM0_level2.fits modeM0/AS1T05_088T01_9000006126_45810cztM0_level2_quad_clean.evt
Size (bytes)858,890,880107,703,360
Size819.1 MB 102.7 MB
Events in quadrant A6,514,146778,960
Events in quadrant B8,363,536709,011
Events in quadrant C3,350,035806,742
Events in quadrant D12,997,516454,314

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237602
B0299692
C0152512
D0437057

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73504155.646259%
B7350151720.639456%
C73501982.693878%
D7349328444.686352%

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 8095 7351 8 8 0.10% 0.11%
B 8095 7351 872 872 10.77% 11.86%
C 8095 7351 1 1 0.01% 0.01%
D 8094 7350 2772 2772 34.25% 37.71%

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 3120823 17729.5 844 824 176.0
A 13 248 85044 478.58 844 824 176.0
A 7 3 20772 113.35 844 824 176.0
B 3 112 4295371 27221.19 809 783 157.8
B 0 171 319638 2021.06 809 783 157.8
B 4 171 137355 865.66 809 783 157.8
C 3 233 16039 76.38 852 856 198.8
C 2 14 12074 56.43 852 856 198.8
C 13 61 5679 24.26 852 856 198.8
D 1 47 6147072 34304.48 708 683 179.2
D 11 241 3264860 18218.16 708 683 179.2
D 13 249 254994 1419.37 708 683 179.2

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