ASTROSAT CZTI

Data Quality Report

Orbit 07733

Creation date: 2024-06-27T15:23:17.643247
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_064T01_9000001066_07733cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07733cztM0_level2_quad_clean.evt
Size (bytes)524,436,48089,565,120
Size500.1 MB 85.4 MB
Events in quadrant A3,794,443548,429
Events in quadrant B3,882,969553,022
Events in quadrant C3,919,350543,947
Events in quadrant D3,752,433520,758

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166575
B0167534
C0168134
D0167384

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78453063.900574%
B78453123.977055%
C78452132.715105%
D78452272.893563%

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 7925 7847 1 1 0.01% 0.01%
B 7925 7847 10 10 0.13% 0.13%
C 7925 7849 1 1 0.01% 0.01%
D 7925 7848 5 5 0.06% 0.06%

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 0 23 58741 293.18 960 935 197.2
A 3 1 16930 81.12 960 935 197.2
A 0 226 13204 62.23 960 935 197.2
B 4 239 45166 235.12 961 937 188.1
B 0 214 33745 174.4 961 937 188.1
B 4 81 32306 166.75 961 937 188.1
C 9 68 262262 1191.97 935 937 219.2
C 13 61 7386 29.42 935 937 219.2
C 8 222 3771 12.93 935 937 219.2
D 13 104 31474 132.46 941 914 230.7
D 7 55 29681 124.69 941 914 230.7
D 2 234 25468 106.43 941 914 230.7

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