ASTROSAT CZTI

Data Quality Report

Orbit 06719

Creation date: 2024-06-27T15:10:45.717958
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/AS1C02_003T01_9000000924_06719cztM0_level2.evt modeM0/AS1C02_003T01_9000000924_06719cztM0_level2_quad_clean.evt
Size (bytes)619,980,48094,587,840
Size591.3 MB 90.2 MB
Events in quadrant A4,141,900603,788
Events in quadrant B3,449,212627,617
Events in quadrant C3,390,313611,482
Events in quadrant D7,283,111496,506

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175964
B0155773
C0156143
D0263173

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75282012.670032%
B7528670.890011%
C7528470.624336%
D7528170322.622210%

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 8963 7530 165 165 1.84% 2.19%
B 8963 7530 4 4 0.04% 0.05%
C 8963 7531 4 4 0.04% 0.05%
D 8963 7531 1362 1362 15.20% 18.09%

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 14 111 732119 4109.49 862 841 177.9
A 13 251 56214 311.17 862 841 177.9
A 8 15 38457 211.39 862 841 177.9
B 10 252 25122 141.66 882 858 171.3
B 12 111 17463 96.94 882 858 171.3
B 11 111 14029 76.89 882 858 171.3
C 10 22 51466 253.57 854 857 199.6
C 13 61 6579 28.67 854 857 199.6
C 12 4 5703 24.28 854 857 199.6
D 2 33 3724530 21845.07 698 676 170.5
D 8 195 815748 4781.42 698 676 170.5
D 2 152 65293 379.06 698 676 170.5

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