ASTROSAT CZTI

Data Quality Report

Orbit 34543

Creation date: 2022-02-17T03:03:26.755505
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/AS1A05_115T02_9000004934_34543cztM0_level2.evt modeM0/AS1A05_115T02_9000004934_34543cztM0_level2_quad_clean.evt
Size (bytes)503,896,32086,135,040
Size480.6 MB 82.1 MB
Events in quadrant A2,814,291557,797
Events in quadrant B3,536,285552,823
Events in quadrant C3,206,808558,411
Events in quadrant D5,300,356524,083

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123753
B0145142
C0131702
D0199352

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5946150.252270%
B59461943.262698%
C5946380.639085%
D59462073.481332%

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 8752 5948 4 4 0.05% 0.07%
B 8752 5948 110 110 1.26% 1.85%
C 8752 5948 23 23 0.26% 0.39%
D 8752 5948 131 131 1.50% 2.20%

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 9 143 83734 598.86 689 677 138.7
A 10 83 41264 292.64 689 677 138.7
A 10 255 13938 95.62 689 677 138.7
B 5 172 533447 4071.09 680 662 130.9
B 0 229 161769 1231.04 680 662 130.9
B 4 232 71209 539.06 680 662 130.9
C 15 214 267704 1704.18 673 677 156.7
C 0 10 98755 625.94 673 677 156.7
C 0 207 76731 485.38 673 677 156.7
D 8 195 1838781 10202.62 658 645 180.2
D 1 52 220497 1220.29 658 645 180.2
D 13 249 167729 927.4 658 645 180.2

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