ASTROSAT CZTI

Data Quality Report

Orbit 20240605_A13_071T08_9000006292_level2

Creation date: 2024-06-08T12:26:17.342843
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_071T08_9000006292cztM0_level2.fits modeM0/AS1A13_071T08_9000006292cztM0_level2_quad_clean.evt
Size (bytes)688,406,400726,914,880
Size656.5 MB 693.2 MB
Events in quadrant A4,173,0244,714,089
Events in quadrant B3,212,6102,987,366
Events in quadrant C4,223,7224,565,481
Events in quadrant D3,575,9764,106,504

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016680
B016680
C016680
D016660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02917510
B04716990
C01881520
D02354090

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8226132343.931389%
B822623984748.439134%
C8226426193.183653%
D8226655526.748839%

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 92110 82254 0 0 0.00% 0.00%
B 92112 82160 0 0 0.00% 0.00%
C 92113 82113 0 0 0.00% 0.00%
D 92113 82185 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 3308 8.23 1089 1022 277.9
A 14 95 3136 7.61 1089 1022 277.9
A 9 19 3114 7.53 1089 1022 277.9
B 2 9 3045 13.65 848 809 163.8
B 2 8 2410 9.77 848 809 163.8
B 3 17 2280 8.98 848 809 163.8
C 3 202 3155 7.24 1117 1038 292.3
C 1 81 3155 7.24 1117 1038 292.3
C 3 203 3134 7.17 1117 1038 292.3
D 8 176 2722 6.27 1025 929 285.8
D 10 189 2666 6.08 1025 929 285.8
D 4 16 2610 5.88 1025 929 285.8

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