ASTROSAT CZTI

Data Quality Report

Orbit 32241

Creation date: 2024-06-27T20:37:59.145547
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/AS1T04_054T01_9000004694_32241cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32241cztM0_level2_quad_clean.evt
Size (bytes)626,639,04083,692,800
Size597.6 MB 79.8 MB
Events in quadrant A3,714,099512,315
Events in quadrant B6,090,153511,155
Events in quadrant C4,202,336491,906
Events in quadrant D4,446,427480,210

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159952
B0238881
C0171081
D0179841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77432843.667829%
B77434295.540488%
C77434635.979594%
D77432603.357872%

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 7768 7744 0 0 0.00% 0.00%
B 7768 7744 44 44 0.57% 0.57%
C 7768 7744 7 7 0.09% 0.09%
D 7768 7744 52 52 0.67% 0.67%

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 15037 72.03 958 935 195.8
A 13 6 11541 54.17 958 935 195.8
A 3 137 10222 47.43 958 935 195.8
B 6 159 2070594 11281.34 944 918 183.5
B 5 172 142914 773.99 944 918 183.5
B 0 229 77266 416.16 944 918 183.5
C 3 233 251636 1165.67 917 924 215.1
C 14 238 205503 951.18 917 924 215.1
C 14 254 81034 372.47 917 924 215.1
D 8 195 543911 2430.86 926 899 223.4
D 2 120 99717 442.37 926 899 223.4
D 12 233 92454 409.86 926 899 223.4

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