ASTROSAT CZTI

Data Quality Report

Orbit 47727

Creation date: 2024-07-26T01:40:20.537152
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/AS1T05_213T01_9000006344_47727cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47727cztM0_level2_quad_clean.evt
Size (bytes)589,337,280123,678,720
Size562.0 MB 117.9 MB
Events in quadrant A7,960,579806,982
Events in quadrant B4,151,650835,453
Events in quadrant C3,515,516821,301
Events in quadrant D5,577,270733,000

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0293890
B0178370
C0165910
D0222270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78782963.757299%
B78781882.386392%
C7879390.494987%
D78794085.178322%

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 7878 7878 4 4 0.05% 0.05%
B 7878 7878 23 23 0.29% 0.29%
C 7879 7879 29 29 0.37% 0.37%
D 7879 7879 287 287 3.64% 3.64%

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 4471955 24533.95 869 848 182.2
A 9 191 71317 386.68 869 848 182.2
A 7 3 29472 157.07 869 848 182.2
B 0 200 563060 3285.77 864 833 171.1
B 5 255 53293 306.59 864 833 171.1
B 4 171 52926 304.44 864 833 171.1
C 12 2 151015 751.89 851 852 199.7
C 14 254 16997 80.84 851 852 199.7
C 12 249 12181 56.73 851 852 199.7
D 2 165 1359931 6338.53 845 815 214.4
D 2 249 477112 2221.31 845 815 214.4
D 5 171 117463 544.01 845 815 214.4

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