ASTROSAT CZTI

Data Quality Report

Orbit 46290

Creation date: 2024-06-27T23:21:20.663659
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_072T02_9000006194_46290cztM0_level2.fits modeM0/AS1A13_072T02_9000006194_46290cztM0_level2_quad_clean.evt
Size (bytes)582,399,360129,654,720
Size555.4 MB 123.6 MB
Events in quadrant A6,675,823863,498
Events in quadrant B5,865,780877,538
Events in quadrant C3,830,501865,468
Events in quadrant D4,564,323761,470

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251481
B0231291
C0171571
D0196131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80302092.602740%
B80302673.325031%
C8030600.747198%
D80293444.284469%

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 8030 8030 1 1 0.01% 0.01%
B 8030 8030 23 23 0.29% 0.29%
C 8030 8030 5 5 0.06% 0.06%
D 8029 8029 254 254 3.16% 3.16%

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 2995869 15127.32 943 921 198.0
A 9 191 14865 70.43 943 921 198.0
A 13 254 12233 57.14 943 921 198.0
B 3 112 1823082 9702.01 929 895 187.8
B 0 190 148694 786.94 929 895 187.8
B 4 171 123634 653.51 929 895 187.8
C 1 3 116946 523.8 935 939 221.5
C 12 2 37257 163.99 935 939 221.5
C 14 67 12793 53.52 935 939 221.5
D 13 249 967671 4200.03 905 877 230.2
D 13 171 87048 374.35 905 877 230.2
D 5 171 40356 171.51 905 877 230.2

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