ASTROSAT CZTI

Data Quality Report

Orbit 47304

Creation date: 2024-06-27T23:34:03.926964
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_093T12_9000006314_47304cztM0_level2.fits modeM0/AS1A13_093T12_9000006314_47304cztM0_level2_quad_clean.evt
Size (bytes)490,343,04098,087,040
Size467.6 MB 93.5 MB
Events in quadrant A7,200,924635,131
Events in quadrant B3,597,197652,899
Events in quadrant C2,789,185664,672
Events in quadrant D4,069,544573,258

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260291
B0151351
C0131761
D0169851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63634306.757819%
B63643655.735387%
C63641201.885607%
D63645358.406662%

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 6908 6365 99 99 1.43% 1.56%
B 6909 6367 93 93 1.35% 1.46%
C 6909 6367 4 4 0.06% 0.06%
D 6909 6367 305 305 4.41% 4.79%

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 3299540 23280.2 680 665 141.7
A 15 235 813350 5735.13 680 665 141.7
A 9 191 416994 2938.04 680 665 141.7
B 0 200 727871 5375.18 688 665 135.3
B 0 198 31920 231.02 688 665 135.3
B 5 255 29337 211.93 688 665 135.3
C 14 254 32565 198.97 687 686 160.2
C 3 233 32275 197.16 687 686 160.2
C 3 160 15375 91.68 687 686 160.2
D 12 2 1243894 7466.68 664 641 166.5
D 6 239 97705 582.94 664 641 166.5
D 7 38 45816 271.31 664 641 166.5

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