ASTROSAT CZTI

Data Quality Report

Orbit 30512

Creation date: 2024-06-27T20:16:15.746531
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/AS1C05_019T04_9000004388_30512cztM0_level2.evt modeM0/AS1C05_019T04_9000004388_30512cztM0_level2_quad_clean.evt
Size (bytes)525,035,520112,331,520
Size500.7 MB 107.1 MB
Events in quadrant A3,335,939775,586
Events in quadrant B5,043,359762,675
Events in quadrant C3,200,386732,170
Events in quadrant D3,919,403717,477

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136931
B0187781
C0130071
D0155271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5926781.316234%
B59251372.312236%
C59252474.168776%
D59261622.733716%

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 7191 5927 8 8 0.11% 0.13%
B 7190 5926 16 16 0.22% 0.27%
C 7190 5926 1 1 0.01% 0.02%
D 7191 5927 116 116 1.61% 1.96%

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 12 96 228223 1444.34 799 787 157.5
A 8 192 14379 86.32 799 787 157.5
A 13 254 11228 66.31 799 787 157.5
B 6 159 1690585 11798.26 777 762 143.2
B 0 155 96041 665.23 777 762 143.2
B 0 229 92040 637.3 777 762 143.2
C 14 238 161365 940.85 745 753 170.7
C 14 254 52037 300.42 745 753 170.7
C 10 22 37305 214.12 745 753 170.7
D 8 195 282745 1582.76 767 749 178.2
D 13 249 193106 1079.64 767 749 178.2
D 12 218 158563 885.76 767 749 178.2

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