ASTROSAT CZTI

Data Quality Report

Orbit 47306

Creation date: 2024-06-27T16:13:21.507864
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_093T12_9000006314_47306cztM0_level2.fits modeM0/AS1A13_093T12_9000006314_47306cztM0_level2_quad_clean.evt
Size (bytes)753,266,880112,481,280
Size718.4 MB 107.3 MB
Events in quadrant A12,197,403668,048
Events in quadrant B4,093,182791,471
Events in quadrant C5,560,545731,367
Events in quadrant D5,435,343678,106

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0416340
B0174580
C0223080
D0219020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7712184523.923755%
B77123224.175311%
C77137119.218203%
D77126678.648859%

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 7712 7712 1131 1131 14.67% 14.67%
B 7712 7712 111 111 1.44% 1.44%
C 7713 7713 575 575 7.45% 7.45%
D 7712 7712 562 562 7.29% 7.29%

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 15 235 4231808 25509.82 799 782 165.9
A 10 83 3832445 23101.97 799 782 165.9
A 14 235 538665 3243.02 799 782 165.9
B 0 200 583052 3637.23 817 791 160.1
B 0 198 92464 572.66 817 791 160.1
B 12 0 44887 275.46 817 791 160.1
C 12 2 2414180 12975.81 791 794 186.0
C 3 233 19735 101.84 791 794 186.0
C 10 20 18672 96.12 791 794 186.0
D 12 2 1896797 9719.12 783 759 195.1
D 12 16 230610 1178.22 783 759 195.1
D 12 128 54265 274.27 783 759 195.1

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