ASTROSAT CZTI

Data Quality Report

Orbit 32083

Creation date: 2024-06-27T20:36:18.431077
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/AS1C06_002T04_9000004684_32083cztM0_level2.evt modeM0/AS1C06_002T04_9000004684_32083cztM0_level2_quad_clean.evt
Size (bytes)794,612,160127,376,640
Size757.8 MB 121.5 MB
Events in quadrant A3,535,598897,012
Events in quadrant B10,900,143767,082
Events in quadrant C3,932,710836,849
Events in quadrant D5,189,091833,113

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153822
B0376372
C0162872
D0202652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7514410.545648%
B7515225029.940120%
C75141542.049508%
D75141682.235826%

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 7919 7514 0 0 0.00% 0.00%
B 7919 7514 1607 1607 20.29% 21.39%
C 7919 7514 21 21 0.27% 0.28%
D 7919 7514 117 117 1.48% 1.56%

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 16466 85.19 912 893 182.8
A 13 6 12823 65.26 912 893 182.8
A 3 137 9252 45.73 912 893 182.8
B 10 245 5533744 35171.14 811 788 157.3
B 6 159 1952849 12408.59 811 788 157.3
B 5 172 62294 390.97 811 788 157.3
C 3 233 186170 911.65 863 868 203.3
C 0 10 170662 835.35 863 868 203.3
C 14 238 138974 679.45 863 868 203.3
D 8 195 1287349 6120.1 881 856 210.2
D 12 218 249331 1182.05 881 856 210.2
D 2 120 88998 419.31 881 856 210.2

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