ASTROSAT CZTI

Data Quality Report

Orbit 44672

Creation date: 2024-06-27T23:05:08.563667
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_072T01_9000006008_44672cztM0_level2.fits modeM0/AS1A13_072T01_9000006008_44672cztM0_level2_quad_clean.evt
Size (bytes)488,465,280108,489,600
Size465.8 MB 103.5 MB
Events in quadrant A5,164,386728,405
Events in quadrant B4,465,055719,883
Events in quadrant C3,074,654717,761
Events in quadrant D4,847,267643,088

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209892
B0180092
C0140222
D0191672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68271622.372931%
B68274556.664714%
C6827500.732386%
D68272994.379669%

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 7727 6828 11 11 0.14% 0.16%
B 7727 6828 280 280 3.62% 4.10%
C 7727 6828 5 5 0.06% 0.07%
D 7727 6828 183 183 2.37% 2.68%

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 2092668 13215.54 763 747 158.3
A 13 248 71933 449.71 763 747 158.3
A 15 223 27717 170.38 763 747 158.3
B 0 189 1190294 8116.43 743 721 146.6
B 0 183 118566 804.05 743 721 146.6
B 0 186 72582 490.31 743 721 146.6
C 14 254 47479 265.14 753 759 176.2
C 3 233 31939 176.95 753 759 176.2
C 2 14 26610 146.71 753 759 176.2
D 1 52 892956 4733.44 744 721 188.5
D 13 249 387340 2051.07 744 721 188.5
D 2 249 241105 1275.27 744 721 188.5

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