ASTROSAT CZTI

Data Quality Report

Orbit 06547

Creation date: 2024-06-27T15:08:39.776386
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_246T04_9000000882_06547cztM0_level2.evt modeM0/AS1G05_246T04_9000000882_06547cztM0_level2_quad_clean.evt
Size (bytes)377,493,12070,346,880
Size360.0 MB 67.1 MB
Events in quadrant A2,689,773440,330
Events in quadrant B2,907,750447,153
Events in quadrant C2,421,700444,888
Events in quadrant D3,049,475423,657

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01142642
B01217139
C01109446
D01264645

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01062
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53431883.518622%
B53482835.291698%
C53401092.041199%
D53441923.592814%

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 5377 5363 0 0 0.00% 0.00%
B 5377 5362 53 53 0.99% 0.99%
C 5377 5363 0 0 0.00% 0.00%
D 5377 5363 44 44 0.82% 0.82%

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 8 15 228544 1725.26 634 618 132.1
A 13 251 6443 44.09 634 618 132.1
A 0 226 6311 43.09 634 618 132.1
B 4 48 137546 1120.96 635 618 122.2
B 0 219 66685 540.86 635 618 122.2
B 4 80 59502 482.05 635 618 122.2
C 8 128 5799 35.88 616 616 144.4
C 13 61 5020 30.49 616 616 144.4
C 8 112 4098 24.11 616 616 144.4
D 2 63 314320 2058.62 615 592 152.4
D 2 33 124359 812.14 615 592 152.4
D 14 173 120378 786.01 615 592 152.4

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