ASTROSAT CZTI

Data Quality Report

Orbit 20240309_A13_071T05_9000006120_level2

Creation date: 2024-03-12T11:34:41.645367
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_071T05_9000006120cztM0_level2.fits modeM0/AS1A13_071T05_9000006120cztM0_level2_quad_clean.evt
Size (bytes)561,853,440570,107,520
Size535.8 MB 543.7 MB
Events in quadrant A3,390,3943,567,933
Events in quadrant B3,316,1003,624,006
Events in quadrant C3,047,3902,699,254
Events in quadrant D2,818,2622,941,693

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02105360
B01489220
C02848860
D02102940

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0790
B0790
C0790
D0790

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013060
B013060
C013060
D013060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6462718332.836276%
B6462715742.435515%
C646271674125.904034%
D64627687110.631779%

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 72257 64619 0 0 0.00% 0.00%
B 72257 64606 0 0 0.00% 0.00%
C 72257 64589 0 0 0.00% 0.00%
D 72257 64461 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 2724 8.39 883 822 226.7
A 15 236 2708 8.32 883 822 226.7
A 14 95 2638 8.01 883 822 226.7
B 2 9 3013 12.57 877 834 173.3
B 2 8 2453 9.34 877 834 173.3
B 3 17 2398 9.02 877 834 173.3
C 3 202 2362 7.63 805 747 211.6
C 1 81 2336 7.51 805 747 211.6
C 3 203 2310 7.39 805 747 211.6
D 8 176 2350 7.2 808 732 224.6
D 12 6 2062 5.92 808 732 224.6
D 10 189 2051 5.87 808 732 224.6

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