ASTROSAT CZTI

Data Quality Report

Orbit 47303

Creation date: 2024-06-27T23:34:03.073851
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_093T12_9000006314_47303cztM0_level2.fits modeM0/AS1A13_093T12_9000006314_47303cztM0_level2_quad_clean.evt
Size (bytes)452,315,520100,520,640
Size431.4 MB 95.9 MB
Events in quadrant A7,384,917639,843
Events in quadrant B3,430,315678,038
Events in quadrant C2,653,763675,128
Events in quadrant D2,789,427614,705

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265593
B0146251
C0127231
D0132421

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62433725.958674%
B62431872.995355%
C624490.144138%
D6244330.528507%

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 7278 6244 103 103 1.42% 1.65%
B 7278 6244 98 98 1.35% 1.57%
C 7279 6245 1 1 0.01% 0.02%
D 7279 6245 17 17 0.23% 0.27%

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 3295080 24326.9 659 645 135.4
A 15 235 990454 7308.99 659 645 135.4
A 9 191 403840 2977.29 659 645 135.4
B 0 200 652836 5065.63 668 649 128.7
B 5 171 47603 364.7 668 649 128.7
B 0 198 22954 173.25 668 649 128.7
C 3 233 32937 209.32 663 666 154.2
C 3 160 15783 98.05 663 666 154.2
C 0 207 5913 34.03 663 666 154.2
D 12 2 147414 900.4 656 634 163.0
D 2 234 32806 197.35 656 634 163.0
D 3 13 22935 136.8 656 634 163.0

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