ASTROSAT CZTI

Data Quality Report

Orbit 20230506_A12_052T04_9000005602_level2

Creation date: 2023-05-09T12:03:58.947456
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/AS1A12_052T04_9000005602cztM0_level2.fits modeM0/AS1A12_052T04_9000005602cztM0_level2_quad_clean.evt
Size (bytes)1,431,339,8401,532,940,480
Size1.3 GB 1.4 GB
Events in quadrant A8,672,1329,464,385
Events in quadrant B8,022,6989,033,727
Events in quadrant C8,437,2148,823,958
Events in quadrant D7,290,3888,186,824

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03440600
B04439230
C03474030
D04174520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06180
B06180
C06180
D06180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032600
B032600
C032600
D032600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1593633690.231547%
B159370117827.392859%
C15937513490.846431%
D15937956203.526186%

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 219621 159384 0 0 0.00% 0.00%
B 219621 159375 0 0 0.00% 0.00%
C 219621 159367 0 0 0.00% 0.00%
D 219621 159271 0 0 0.00% 0.00%

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 7 110 7280 9.25 2266 2128 557.0
A 9 19 7138 8.99 2266 2128 557.0
A 0 29 6936 8.63 2266 2128 557.0
B 2 9 6773 11.5 2120 2018 413.6
B 3 80 5726 8.97 2120 2018 413.6
B 3 17 5509 8.44 2120 2018 413.6
C 1 81 6997 8.66 2228 2086 567.3
C 1 80 6684 8.1 2228 2086 567.3
C 3 202 6654 8.05 2228 2086 567.3
D 10 113 5353 6.27 2085 1899 551.3
D 7 3 5317 6.2 2085 1899 551.3
D 6 231 5314 6.19 2085 1899 551.3

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