ASTROSAT CZTI

Data Quality Report

Orbit 46528

Creation date: 2024-06-27T23:24:17.605802
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_091T05_9000006224_46528cztM0_level2.fits modeM0/AS1A13_091T05_9000006224_46528cztM0_level2_quad_clean.evt
Size (bytes)538,416,000108,904,320
Size513.5 MB 103.9 MB
Events in quadrant A8,114,024690,847
Events in quadrant B4,269,334725,592
Events in quadrant C3,133,670734,535
Events in quadrant D3,875,578663,444

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0287502
B0173132
C0143762
D0164472

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A693273210.559723%
B69333875.581999%
C6933150.216357%
D69331381.990480%

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 8702 6933 562 562 6.46% 8.11%
B 8703 6933 252 252 2.90% 3.63%
C 8703 6935 4 4 0.05% 0.06%
D 8703 6935 111 111 1.28% 1.60%

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 3349035 21270.55 752 734 157.4
A 13 248 1397964 8876.1 752 734 157.4
A 9 191 410787 2604.92 752 734 157.4
B 5 32 352130 2367.83 752 728 148.4
B 12 33 332138 2233.12 752 728 148.4
B 5 255 235274 1580.43 752 728 148.4
C 3 233 60060 324.49 766 770 182.7
C 14 254 56378 304.34 766 770 182.7
C 1 3 15552 80.9 766 770 182.7
D 1 47 189683 988.2 757 735 191.2
D 13 249 173809 905.18 757 735 191.2
D 2 249 135946 707.15 757 735 191.2

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