ASTROSAT CZTI

Data Quality Report

Orbit 43125

Creation date: 2024-06-27T22:48:20.890715
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/AS1A09_006T07_9000005852_43125cztM0_level2.fits modeM0/AS1A09_006T07_9000005852_43125cztM0_level2_quad_clean.evt
Size (bytes)57,052,80015,891,840
Size54.4 MB 15.2 MB
Events in quadrant A714,128104,998
Events in quadrant B395,369111,507
Events in quadrant C418,283104,138
Events in quadrant D515,07094,738

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027381
B016971
C017111
D020863

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A846252.955083%
B84610.118203%
C84610.118203%
D845242.840237%

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 846 846 16 16 1.89% 1.89%
B 846 846 0 0 0.00% 0.00%
C 846 846 0 0 0.00% 0.00%
D 845 845 15 15 1.78% 1.78%

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 156562 6968.52 101 99 22.5
A 15 222 102844 4576.04 101 99 22.5
A 15 237 59593 2649.73 101 99 22.5
B 14 111 2369 107.26 99 97 21.2
B 12 111 2335 105.65 99 97 21.2
B 11 111 2154 97.11 99 97 21.2
C 15 214 39975 1663.11 96 97 24.0
C 5 250 941 35.2 96 97 24.0
C 3 233 922 34.41 96 97 24.0
D 1 52 134452 5346.14 96 93 25.1
D 12 6 6806 267.11 96 93 25.1
D 2 234 3429 132.74 96 93 25.1

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