ASTROSAT CZTI

Data Quality Report

Orbit 10108

Creation date: 2024-06-27T15:55:08.619025
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/AS1G07_065T01_9000001454_10108cztM0_level2.evt modeM0/AS1G07_065T01_9000001454_10108cztM0_level2_quad_clean.evt
Size (bytes)523,494,72098,593,920
Size499.2 MB 94.0 MB
Events in quadrant A3,570,849621,179
Events in quadrant B3,886,161631,781
Events in quadrant C3,435,600616,618
Events in quadrant D4,441,769583,794

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01592748
B01678454
C01575250
D01831152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01582
C01580
D01582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7653700.914674%
B76551171.528413%
C7652350.457397%
D76561211.580460%

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 8356 7677 0 0 0.00% 0.00%
B 8356 7676 8 8 0.10% 0.10%
C 8356 7678 0 0 0.00% 0.00%
D 8356 7678 75 75 0.90% 0.98%

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 8 15 39107 204.15 908 889 187.2
A 15 174 19862 101.35 908 889 187.2
A 8 157 10795 52.91 908 889 187.2
B 0 214 97255 544.36 914 893 177.0
B 4 81 96425 539.67 914 893 177.0
B 4 239 92308 516.41 914 893 177.0
C 14 67 7439 31.84 878 882 205.9
C 13 61 6563 27.59 878 882 205.9
C 4 175 2918 9.89 878 882 205.9
D 1 52 399984 1875.35 870 844 212.8
D 8 195 318457 1492.29 870 844 212.8
D 12 233 250692 1173.9 870 844 212.8

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