ASTROSAT CZTI

Data Quality Report

Orbit 48067

Creation date: 2024-08-19T09:37:45.043986
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_024T01_9000006394_48067cztM0_level2.fits modeM0/AS1A13_024T01_9000006394_48067cztM0_level2_quad_clean.evt
Size (bytes)486,017,280107,161,920
Size463.5 MB 102.2 MB
Events in quadrant A7,442,380681,396
Events in quadrant B3,335,043745,465
Events in quadrant C2,996,718708,585
Events in quadrant D3,702,220647,342

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0264852
B0144262
C0136542
D0154532

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66266029.085421%
B66261111.675219%
C6626540.814971%
D66261402.112889%

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 7671 6627 177 177 2.31% 2.67%
B 7671 6626 10 10 0.13% 0.15%
C 7671 6627 6 6 0.08% 0.09%
D 7671 6627 77 77 1.00% 1.16%

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 4130943 26467.93 746 729 156.0
A 13 248 376489 2408.01 746 729 156.0
A 7 3 23251 144.33 746 729 156.0
B 7 221 239465 1575.39 763 738 151.5
B 0 198 45768 297.16 763 738 151.5
B 0 197 19804 125.82 763 738 151.5
C 14 254 36103 199.75 751 754 177.0
C 12 2 16414 88.49 751 754 177.0
C 12 250 14318 76.65 751 754 177.0
D 2 249 365941 1945.92 751 729 187.7
D 2 120 134715 713.9 751 729 187.7
D 2 165 114657 607.03 751 729 187.7

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