ASTROSAT CZTI

Data Quality Report

Orbit 03560

Creation date: 2024-06-27T14:30:58.538399
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/AS1G05_045T01_9000000468_03560cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03560cztM0_level2_quad_clean.evt
Size (bytes)417,634,56076,800,960
Size398.3 MB 73.2 MB
Events in quadrant A2,641,262493,064
Events in quadrant B3,621,906486,221
Events in quadrant C3,191,927481,842
Events in quadrant D2,807,924468,436

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117062
B0146711
C0131711
D0123131

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5660931.643110%
B5660981.731449%
C5660841.484099%
D56601342.367491%

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 6920 5660 0 0 0.00% 0.00%
B 6920 5660 6 6 0.09% 0.11%
C 6920 5660 8 8 0.12% 0.14%
D 6920 5660 58 58 0.84% 1.02%

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 0 118 19671 138.64 677 663 137.1
A 0 226 8903 60.1 677 663 137.1
A 12 194 7380 48.99 677 663 137.1
B 15 204 710676 5487.55 681 664 129.4
B 14 167 89100 683.5 681 664 129.4
B 0 182 39728 301.92 681 664 129.4
C 15 208 599151 3927.85 660 664 152.4
C 1 16 8166 49.24 660 664 152.4
C 13 61 5688 32.97 660 664 152.4
D 7 39 94318 592.55 661 644 158.1
D 4 160 80853 507.38 661 644 158.1
D 5 233 41412 257.89 661 644 158.1

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