ASTROSAT CZTI

Data Quality Report

Orbit 20386

Creation date: 2024-06-27T18:14:44.706281
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/AS1A05_205T01_9000003012_20386cztM0_level2.evt modeM0/AS1A05_205T01_9000003012_20386cztM0_level2_quad_clean.evt
Size (bytes)565,752,96089,559,360
Size539.5 MB 85.4 MB
Events in quadrant A3,878,953548,445
Events in quadrant B4,053,176552,511
Events in quadrant C3,942,221533,647
Events in quadrant D4,710,684515,896

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168192
B0170732
C0168502
D0193563

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80853153.896104%
B80863734.612911%
C80863704.575810%
D80854355.380334%

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 8605 8089 0 0 0.00% 0.00%
B 8606 8089 16 16 0.19% 0.20%
C 8606 8090 0 0 0.00% 0.00%
D 8605 8089 97 97 1.13% 1.20%

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 8831 38.6 1002 977 203.4
A 3 137 8612 37.53 1002 977 203.4
A 12 194 7126 30.22 1002 977 203.4
B 7 220 75853 380.86 998 969 196.6
B 12 111 24133 117.81 998 969 196.6
B 11 111 21351 103.66 998 969 196.6
C 14 238 148614 643.65 966 971 229.4
C 8 128 12310 49.43 966 971 229.4
C 3 233 9095 35.42 966 971 229.4
D 1 52 729331 3048.15 979 949 239.0
D 13 153 149408 621.27 979 949 239.0
D 7 238 56317 231.71 979 949 239.0

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