ASTROSAT CZTI

Data Quality Report

Orbit 22300

Creation date: 2024-06-27T18:39:11.370103
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_049T01_9000003298_22300cztM0_level2.evt modeM0/AS1A07_049T01_9000003298_22300cztM0_level2_quad_clean.evt
Size (bytes)451,045,44095,307,840
Size430.2 MB 90.9 MB
Events in quadrant A3,152,302614,268
Events in quadrant B3,296,202629,737
Events in quadrant C3,200,997594,212
Events in quadrant D3,549,210575,473

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138882
B0142232
C0139202
D0152162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6782420.619286%
B6782580.855205%
C6782791.164848%
D67821261.857859%

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 7717 6783 0 0 0.00% 0.00%
B 7717 6783 1 1 0.01% 0.01%
C 7717 6783 0 0 0.00% 0.00%
D 7717 6783 66 66 0.86% 0.97%

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 13 254 8307 45.49 817 800 165.0
A 3 137 7199 38.77 817 800 165.0
A 0 226 7072 38.0 817 800 165.0
B 0 190 42956 272.08 818 797 155.0
B 3 64 28876 181.21 818 797 155.0
B 12 111 18870 116.64 818 797 155.0
C 14 238 122823 657.91 788 793 185.5
C 13 61 5443 25.07 788 793 185.5
C 0 10 4393 19.41 788 793 185.5
D 1 52 416237 2152.2 793 770 193.0
D 2 136 49570 252.79 793 770 193.0
D 13 249 44250 225.23 793 770 193.0

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