ASTROSAT CZTI

Data Quality Report

Orbit 05590

Creation date: 2024-06-27T14:56:59.395418
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/AS1G06_034T01_9000000722_05590cztM0_level2.evt modeM0/AS1G06_034T01_9000000722_05590cztM0_level2_quad_clean.evt
Size (bytes)484,073,28093,628,800
Size461.6 MB 89.3 MB
Events in quadrant A3,335,560599,734
Events in quadrant B3,602,486597,431
Events in quadrant C3,257,461589,389
Events in quadrant D3,980,909553,047

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147682
B0153341
C0146111
D0168941

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7122610.856501%
B7122911.277731%
C7122250.351025%
D71221962.752036%

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 7607 7123 1 1 0.01% 0.01%
B 7607 7123 4 4 0.05% 0.06%
C 7607 7123 0 0 0.00% 0.00%
D 7607 7123 119 119 1.56% 1.67%

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 0 50 25849 144.24 854 835 173.4
A 13 14 10573 56.15 854 835 173.4
A 12 194 8421 43.74 854 835 173.4
B 4 48 59547 356.56 861 840 164.6
B 0 219 52411 313.22 861 840 164.6
B 4 81 40773 242.54 861 840 164.6
C 12 4 6834 30.92 832 839 193.9
C 13 61 6752 30.5 832 839 193.9
C 1 16 3230 12.33 832 839 193.9
D 2 33 248630 1231.07 822 800 201.3
D 2 152 139308 688.03 822 800 201.3
D 13 105 131367 648.58 822 800 201.3

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