ASTROSAT CZTI

Data Quality Report

Orbit 07594

Creation date: 2024-06-27T15:21:34.828055
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/AS1G06_117T01_9000001046_07594cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07594cztM0_level2_quad_clean.evt
Size (bytes)700,845,12074,862,720
Size668.4 MB 71.4 MB
Events in quadrant A3,625,915471,829
Events in quadrant B2,868,365486,296
Events in quadrant C10,057,498419,278
Events in quadrant D4,253,564454,273

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144972
B0126621
C0342411
D0168861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62201562.508039%
B6220580.932476%
C6220137322.073955%
D62202774.453376%

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 7245 6220 86 86 1.19% 1.38%
B 7245 6221 2 2 0.03% 0.03%
C 7245 6221 1384 1384 19.10% 22.25%
D 7245 6220 194 194 2.68% 3.12%

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 15 239 817603 5463.54 729 713 149.5
A 0 226 6984 41.94 729 713 149.5
A 12 194 6506 38.74 729 713 149.5
B 12 111 15386 103.17 734 715 142.2
B 11 111 12025 79.54 734 715 142.2
B 0 213 8832 57.08 734 715 142.2
C 9 68 7069067 46129.65 662 665 153.2
C 8 229 397956 2592.79 662 665 153.2
C 13 61 4985 28.19 662 665 153.2
D 5 233 1204189 6928.1 700 678 173.7
D 2 152 242481 1391.96 700 678 173.7
D 2 14 118658 679.16 700 678 173.7

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