ASTROSAT CZTI

Data Quality Report

Orbit 44463

Creation date: 2024-06-27T23:01:29.150187
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/AS1A13_077T01_9000005984_44463cztM0_level2.fits modeM0/AS1A13_077T01_9000005984_44463cztM0_level2_quad_clean.evt
Size (bytes)506,733,120123,693,120
Size483.3 MB 118.0 MB
Events in quadrant A5,501,246821,437
Events in quadrant B3,803,149842,725
Events in quadrant C3,844,949808,784
Events in quadrant D5,003,263731,235

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232103
B0166573
C0169789
D0203423

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77863604.623684%
B77873304.237832%
C77862513.223735%
D77864405.651169%

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 7881 7788 2 2 0.03% 0.03%
B 7882 7789 9 9 0.11% 0.12%
C 7881 7788 11 11 0.14% 0.14%
D 7881 7788 172 172 2.18% 2.21%

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 10 83 1943167 10215.35 914 893 190.1
A 8 4 12548 61.3 914 893 190.1
A 0 243 11041 53.37 914 893 190.1
B 0 229 75463 408.35 907 877 182.7
B 5 172 42341 227.01 907 877 182.7
B 7 221 29376 156.03 907 877 182.7
C 14 254 178602 830.25 902 904 214.0
C 12 16 85962 397.41 902 904 214.0
C 3 233 37734 172.08 902 904 214.0
D 1 52 485364 2109.12 900 870 229.7
D 2 249 343108 1489.84 900 870 229.7
D 13 249 237973 1032.17 900 870 229.7

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