ASTROSAT CZTI

Data Quality Report

Orbit 46428

Creation date: 2024-06-27T23:23:05.078277
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_062T01_9000006208_46428cztM0_level2.fits modeM0/AS1A13_062T01_9000006208_46428cztM0_level2_quad_clean.evt
Size (bytes)491,644,800107,421,120
Size468.9 MB 102.4 MB
Events in quadrant A5,830,100716,540
Events in quadrant B3,068,606748,387
Events in quadrant C3,790,294706,369
Events in quadrant D4,996,183619,975

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216172
B0136412
C0158782
D0193872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66181562.357208%
B6618580.876398%
C66182303.475370%
D66185918.930190%

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 7643 6619 16 16 0.21% 0.24%
B 7643 6619 7 7 0.09% 0.11%
C 7643 6619 197 197 2.58% 2.98%
D 7643 6619 507 507 6.63% 7.66%

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 2952827 19141.84 742 726 154.2
A 13 254 11295 68.53 742 726 154.2
A 3 137 8673 51.53 742 726 154.2
B 0 190 59262 399.01 742 722 146.7
B 0 189 59078 397.75 742 722 146.7
B 12 111 19559 128.39 742 722 146.7
C 14 254 840692 4936.06 724 729 170.2
C 11 16 71025 413.1 724 729 170.2
C 3 233 32524 186.84 724 729 170.2
D 13 249 1998798 11322.4 709 689 176.5
D 8 129 151918 856.95 709 689 176.5
D 14 34 46409 259.07 709 689 176.5

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