ASTROSAT CZTI

Data Quality Report

Orbit 06530

Creation date: 2024-06-27T15:08:28.339950
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_136T02_9000000876_06530cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06530cztM0_level2_quad_clean.evt
Size (bytes)433,702,08089,280,000
Size413.6 MB 85.1 MB
Events in quadrant A3,095,402561,908
Events in quadrant B3,365,937570,341
Events in quadrant C2,917,578561,172
Events in quadrant D3,297,191540,384

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139331
B0145710
C0136830
D0146580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6744741.097272%
B67441041.542112%
C6744200.296560%
D6744791.171412%

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 7584 6745 0 0 0.00% 0.00%
B 7584 6745 25 25 0.33% 0.37%
C 7584 6745 0 0 0.00% 0.00%
D 7584 6745 38 38 0.50% 0.56%

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 15 236 80692 502.7 777 760 159.0
A 8 15 8086 46.07 777 760 159.0
A 15 239 7686 43.56 777 760 159.0
B 4 81 141995 946.95 777 759 149.1
B 0 219 70076 464.75 777 759 149.1
B 4 48 60669 401.68 777 759 149.1
C 13 61 5977 30.23 746 748 173.0
C 12 4 4120 19.49 746 748 173.0
C 8 222 2205 8.42 746 748 173.0
D 12 233 261242 1425.6 748 725 182.7
D 2 152 49461 266.69 748 725 182.7
D 2 14 31598 168.94 748 725 182.7

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