ASTROSAT CZTI

Data Quality Report

Orbit 19732

Creation date: 2024-06-27T18:06:09.087009
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_013T01_9000002944_19732cztM0_level2.evt modeM0/AS1A05_013T01_9000002944_19732cztM0_level2_quad_clean.evt
Size (bytes)512,890,56074,134,080
Size489.1 MB 70.7 MB
Events in quadrant A3,292,815448,085
Events in quadrant B3,488,610453,387
Events in quadrant C4,093,593432,102
Events in quadrant D4,186,892427,626

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143881
B0147851
C0164561
D0170021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6935911.312185%
B69361412.032872%
C69362193.157439%
D69362443.517878%

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 7460 6936 1 1 0.01% 0.01%
B 7461 6937 19 19 0.25% 0.27%
C 7461 6937 38 38 0.51% 0.55%
D 7461 6936 133 133 1.78% 1.92%

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 6 16 38058 218.78 842 826 170.2
A 13 254 7549 39.51 842 826 170.2
A 0 226 7390 38.57 842 826 170.2
B 7 220 132773 820.13 841 820 160.9
B 12 111 19590 116.66 841 820 160.9
B 0 197 18378 109.13 841 820 160.9
C 3 233 814376 4277.07 809 812 190.2
C 14 238 124373 649.59 809 812 190.2
C 13 61 5614 25.25 809 812 190.2
D 1 52 986705 4988.13 815 791 197.7
D 2 16 38671 191.65 815 791 197.7
D 7 238 34616 171.13 815 791 197.7

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