ASTROSAT CZTI

Data Quality Report

Orbit 29096

Creation date: 2024-06-27T20:00:30.599786
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/AS1T03_275T01_9000004180_29096cztM0_level2.evt modeM0/AS1T03_275T01_9000004180_29096cztM0_level2_quad_clean.evt
Size (bytes)280,120,32052,174,080
Size267.1 MB 49.8 MB
Events in quadrant A1,778,520348,383
Events in quadrant B1,821,763353,641
Events in quadrant C1,997,809322,830
Events in quadrant D2,650,121310,467

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073640
B074600
C081780
D0102530

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A344930.086982%
B3450110.318841%
C3450290.840580%
D34501073.101449%

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 3449 3449 0 0 0.00% 0.00%
B 3450 3450 1 1 0.03% 0.03%
C 3450 3450 0 0 0.00% 0.00%
D 3450 3450 110 110 3.19% 3.19%

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 6 16 21481 233.4 455 449 90.1
A 13 254 7063 73.4 455 449 90.1
A 0 226 3907 38.37 455 449 90.1
B 0 183 24510 283.99 456 448 84.7
B 12 111 9233 103.68 456 448 84.7
B 11 111 8202 91.52 456 448 84.7
C 3 233 250559 2540.28 427 432 98.5
C 14 238 72249 729.37 427 432 98.5
C 2 114 8390 80.82 427 432 98.5
D 8 195 467008 4625.83 423 412 100.9
D 1 52 346406 3430.19 423 412 100.9
D 2 250 200722 1985.87 423 412 100.9

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