ASTROSAT CZTI

Data Quality Report

Orbit 45564

Creation date: 2024-06-27T23:13:42.250444
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_071T04_9000006110_45564cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45564cztM0_level2_quad_clean.evt
Size (bytes)491,267,520113,342,400
Size468.5 MB 108.1 MB
Events in quadrant A6,063,847741,742
Events in quadrant B3,578,093775,370
Events in quadrant C3,326,547750,017
Events in quadrant D4,674,755678,710

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229252
B0155122
C0149792
D0187902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69813344.784415%
B69811982.836270%
C6981450.644607%
D69811962.807621%

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 7596 6982 27 27 0.36% 0.39%
B 7596 6982 66 66 0.87% 0.95%
C 7596 6982 14 14 0.18% 0.20%
D 7596 6982 111 111 1.46% 1.59%

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 2967525 18377.68 780 762 161.4
A 13 248 54321 331.77 780 762 161.4
A 10 248 12508 72.76 780 762 161.4
B 5 172 163434 1058.39 781 756 153.7
B 15 35 85246 549.69 781 756 153.7
B 7 221 41427 264.6 781 756 153.7
C 12 2 310562 1737.71 766 770 178.3
C 14 254 16904 90.5 766 770 178.3
C 13 61 5182 24.75 766 770 178.3
D 5 171 471446 2465.96 762 737 190.9
D 1 52 332510 1738.1 762 737 190.9
D 12 233 248331 1297.1 762 737 190.9

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