ASTROSAT CZTI

Data Quality Report

Orbit 05245

Creation date: 2024-06-27T14:53:01.404086
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/AS1C01_015T01_9000000668_05245cztM0_level2.evt modeM0/AS1C01_015T01_9000000668_05245cztM0_level2_quad_clean.evt
Size (bytes)570,000,96065,540,160
Size543.6 MB 62.5 MB
Events in quadrant A3,602,810369,954
Events in quadrant B3,678,080367,945
Events in quadrant C3,616,781361,291
Events in quadrant D5,839,616346,908

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160843
B0161582
C0161472
D0224962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77382252.907728%
B77382343.024037%
C77382122.739726%
D77387199.291807%

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 8178 7740 0 0 0.00% 0.00%
B 8178 7740 0 0 0.00% 0.00%
C 8178 7740 0 0 0.00% 0.00%
D 8178 7740 372 372 4.55% 4.81%

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 0 226 9211 42.96 935 912 193.2
A 12 194 9121 42.5 935 912 193.2
A 13 14 5333 22.89 935 912 193.2
B 12 111 18130 92.78 937 912 185.6
B 7 252 16440 83.67 937 912 185.6
B 11 111 14388 72.61 937 912 185.6
C 1 16 63182 294.54 899 903 211.4
C 8 128 20235 91.43 899 903 211.4
C 8 112 8074 33.91 899 903 211.4
D 11 145 1857278 8408.93 889 859 220.8
D 8 195 295400 1334.17 889 859 220.8
D 2 16 268338 1211.59 889 859 220.8

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