ASTROSAT CZTI

Data Quality Report

Orbit 45407

Creation date: 2024-06-27T23:11:06.725913
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/AS1A13_049T07_9000006056_45407cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45407cztM0_level2_quad_clean.evt
Size (bytes)568,177,920139,803,840
Size541.9 MB 133.3 MB
Events in quadrant A6,722,389931,505
Events in quadrant B3,951,771963,404
Events in quadrant C3,868,110922,054
Events in quadrant D5,816,386813,009

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263960
B0180890
C0180570
D0232200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8685750.863558%
B8684620.713957%
C8685240.276339%
D86852763.177893%

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 8685 8685 0 0 0.00% 0.00%
B 8684 8684 0 0 0.00% 0.00%
C 8685 8685 12 12 0.14% 0.14%
D 8685 8685 267 267 3.07% 3.07%

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 10 83 2912179 14282.66 977 954 203.8
A 9 191 16209 74.84 977 954 203.8
A 2 79 11777 53.1 977 954 203.8
B 12 111 24957 124.43 977 946 193.0
B 4 170 24614 122.65 977 946 193.0
B 11 111 23235 115.5 977 946 193.0
C 10 20 44167 190.86 960 963 226.4
C 1 3 35364 151.97 960 963 226.4
C 3 233 30269 129.46 960 963 226.4
D 1 52 531608 2243.83 936 904 236.5
D 2 249 482967 2038.18 936 904 236.5
D 11 241 462040 1949.7 936 904 236.5

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