ASTROSAT CZTI

Data Quality Report

Orbit 46415

Creation date: 2024-06-27T23:22:55.970747
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_033T03_9000006206_46415cztM0_level2.fits modeM0/AS1A13_033T03_9000006206_46415cztM0_level2_quad_clean.evt
Size (bytes)405,866,880106,041,600
Size387.1 MB 101.1 MB
Events in quadrant A5,409,383704,897
Events in quadrant B2,897,639737,935
Events in quadrant C2,860,668705,088
Events in quadrant D3,378,261634,361

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198511
B0126251
C0127152
D0143451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61481352.195836%
B6148651.057254%
C6147350.569383%
D61472073.367496%

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 7303 6149 4 4 0.05% 0.07%
B 7303 6149 0 0 0.00% 0.00%
C 7302 6148 7 7 0.10% 0.11%
D 7302 6148 146 146 2.00% 2.37%

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 2597357 17291.65 724 710 150.2
A 13 254 11065 68.96 724 710 150.2
A 0 247 9431 58.08 724 710 150.2
B 5 32 18694 125.71 722 700 143.1
B 12 111 18420 123.8 722 700 143.1
B 11 111 16898 113.17 722 700 143.1
C 14 254 63550 376.94 708 712 166.7
C 3 233 16245 93.18 708 712 166.7
C 8 112 7988 43.65 708 712 166.7
D 13 249 462684 2655.14 702 681 174.0
D 2 249 130876 748.23 702 681 174.0
D 13 138 49885 282.78 702 681 174.0

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