ASTROSAT CZTI

Data Quality Report

Orbit 23236

Creation date: 2024-06-27T18:49:55.893235
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/AS1A07_054T01_9000003406_23236cztM0_level2.evt modeM0/AS1A07_054T01_9000003406_23236cztM0_level2_quad_clean.evt
Size (bytes)338,310,72081,288,000
Size322.6 MB 77.5 MB
Events in quadrant A2,332,371532,976
Events in quadrant B2,347,695549,346
Events in quadrant C2,582,045522,307
Events in quadrant D2,651,849515,481

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010917802
B010937746
C011728885
D012080754

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010513
B010612
C01059
D01059

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4858100.205846%
B4891330.674709%
C48821062.171241%
D4896440.898693%

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 5649 4963 0 0 0.00% 0.00%
B 5649 4996 3 3 0.05% 0.06%
C 5649 4990 34 34 0.60% 0.68%
D 5649 5005 25 25 0.44% 0.50%

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 13 252 66103 551.3 584 572 118.9
A 6 16 11831 94.72 584 572 118.9
A 13 254 7306 56.65 584 572 118.9
B 12 111 13579 113.89 588 573 114.2
B 11 111 12066 100.64 588 573 114.2
B 14 111 10603 87.83 588 573 114.2
C 8 208 252144 1893.45 565 568 132.9
C 14 238 88644 662.89 565 568 132.9
C 10 9 15027 108.82 565 568 132.9
D 7 238 249952 1775.18 574 556 140.5
D 1 52 120998 857.29 574 556 140.5
D 2 152 51384 361.79 574 556 140.5

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