ASTROSAT CZTI

Data Quality Report

Orbit 32022

Creation date: 2024-06-27T20:35:21.295046
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/AS1A10_109T01_9000004678_32022cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32022cztM0_level2_quad_clean.evt
Size (bytes)643,786,560112,999,680
Size614.0 MB 107.8 MB
Events in quadrant A3,728,243760,090
Events in quadrant B5,798,466747,218
Events in quadrant C4,159,371711,305
Events in quadrant D5,314,860693,001

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152772
B0225742
C0166512
D0207252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73401492.029973%
B73402623.569482%
C73402843.869210%
D73411812.465604%

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 8940 7340 0 0 0.00% 0.00%
B 8940 7340 14 14 0.16% 0.19%
C 8940 7340 40 40 0.45% 0.54%
D 8941 7341 32 32 0.36% 0.44%

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 13 6 15633 75.78 962 946 193.8
A 13 254 13811 66.38 962 946 193.8
A 3 137 9324 43.23 962 946 193.8
B 6 159 1907845 10647.78 938 916 179.1
B 0 190 87799 485.13 938 916 179.1
B 12 18 45958 251.5 938 916 179.1
C 0 10 282455 1335.59 906 913 210.8
C 3 233 159250 751.12 906 913 210.8
C 14 238 149065 702.81 906 913 210.8
D 8 195 1526044 6951.23 922 901 219.4
D 2 250 120650 545.79 922 901 219.4
D 10 199 80095 360.95 922 901 219.4

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