ASTROSAT CZTI

Data Quality Report

Orbit 47039

Creation date: 2024-06-27T23:31:03.325973
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/AS1C09_005T01_9000006296_47039cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47039cztM0_level2_quad_clean.evt
Size (bytes)545,351,040105,992,640
Size520.1 MB 101.1 MB
Events in quadrant A6,357,034727,279
Events in quadrant B3,503,562750,979
Events in quadrant C2,936,170735,309
Events in quadrant D6,893,090548,971

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229841
B0145471
C0132711
D0248851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64132283.555278%
B64131572.448152%
C6413610.951193%
D6413134420.957430%

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 7553 6414 47 47 0.62% 0.73%
B 7553 6414 71 71 0.94% 1.11%
C 7553 6414 7 7 0.09% 0.11%
D 7553 6414 1084 1084 14.35% 16.90%

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 3259024 21489.69 731 715 151.6
A 9 191 135939 891.85 731 715 151.6
A 13 248 121746 798.24 731 715 151.6
B 3 112 352089 2528.63 719 697 139.0
B 0 200 208093 1492.43 719 697 139.0
B 4 171 60931 433.45 719 697 139.0
C 14 254 71981 419.39 728 733 169.9
C 12 250 18980 107.41 728 733 169.9
C 14 67 4996 25.09 728 733 169.9
D 1 52 3712779 23002.25 647 628 161.4
D 1 47 294961 1823.83 647 628 161.4
D 12 218 128297 791.1 647 628 161.4

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