ASTROSAT CZTI

Data Quality Report

Orbit 05090

Creation date: 2024-06-27T14:51:10.216396
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/AS1G05_103T01_9000000642_05090cztM0_level2.evt modeM0/AS1G05_103T01_9000000642_05090cztM0_level2_quad_clean.evt
Size (bytes)446,411,52055,558,080
Size425.7 MB 53.0 MB
Events in quadrant A2,304,380348,070
Events in quadrant B2,729,327349,410
Events in quadrant C2,294,814346,158
Events in quadrant D5,833,717269,769

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106591
B0117841
C0106101
D0210001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5260140.266160%
B5260490.931559%
C526060.114068%
D5260113121.501901%

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 5260 5260 2 2 0.04% 0.04%
B 5260 5260 30 30 0.57% 0.57%
C 5260 5260 0 0 0.00% 0.00%
D 5260 5259 800 800 15.21% 15.21%

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 0 50 21379 169.3 593 579 122.9
A 12 194 5995 44.08 593 579 122.9
A 0 226 5613 40.97 593 579 122.9
B 8 3 246075 2109.15 600 587 116.4
B 15 204 96845 827.02 600 587 116.4
B 0 219 23265 194.84 600 587 116.4
C 8 128 17538 126.3 579 583 134.2
C 8 112 7426 50.98 579 583 134.2
C 8 144 6617 44.95 579 583 134.2
D 13 235 1452734 11699.02 508 494 124.1
D 12 22 890391 7168.87 508 494 124.1
D 10 15 480644 3868.01 508 494 124.1

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