ASTROSAT CZTI

Data Quality Report

Orbit 06688

Creation date: 2024-06-27T15:10:23.008645
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/AS1G06_145T01_9000000914_06688cztM0_level2.evt modeM0/AS1G06_145T01_9000000914_06688cztM0_level2_quad_clean.evt
Size (bytes)433,825,92069,575,040
Size413.7 MB 66.4 MB
Events in quadrant A2,253,234452,283
Events in quadrant B2,549,501460,963
Events in quadrant C2,189,398460,662
Events in quadrant D5,804,671380,080

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103011
B0109871
C0101961
D0208021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5020130.258964%
B5020651.294821%
C502050.099602%
D502096819.282869%

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 5020 5020 1 1 0.02% 0.02%
B 5020 5020 16 16 0.32% 0.32%
C 5020 5020 0 0 0.00% 0.00%
D 5020 5020 786 786 15.66% 15.66%

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 43671 369.26 569 556 116.8
A 4 2 7306 57.81 569 556 116.8
A 12 194 5950 46.2 569 556 116.8
B 4 81 72017 663.72 573 560 107.7
B 0 219 70954 653.84 573 560 107.7
B 4 48 69046 636.12 573 560 107.7
C 13 61 4553 30.98 560 563 128.8
C 12 4 2376 14.07 560 563 128.8
C 3 202 1482 7.13 560 563 128.8
D 2 33 1901996 15421.82 506 489 123.3
D 8 195 1020249 8270.58 506 489 123.3
D 2 152 634615 5142.96 506 489 123.3

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