ASTROSAT CZTI

Data Quality Report

Orbit 03565

Creation date: 2024-06-27T14:31:02.596107
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_045T01_9000000468_03565cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03565cztM0_level2_quad_clean.evt
Size (bytes)612,864,000111,144,960
Size584.5 MB 106.0 MB
Events in quadrant A3,830,199712,626
Events in quadrant B4,449,380711,106
Events in quadrant C5,775,014672,106
Events in quadrant D3,933,295683,526

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175404
B0190543
C0232633
D0181333

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8435580.687611%
B84351551.837582%
C84357308.654416%
D84351001.185536%

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 8975 8439 2 2 0.02% 0.02%
B 8975 8436 19 19 0.21% 0.23%
C 8975 8438 530 530 5.91% 6.28%
D 8975 8440 67 67 0.75% 0.79%

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 0 50 20851 99.52 973 947 200.0
A 7 16 16113 75.83 973 947 200.0
A 3 1 14941 69.97 973 947 200.0
B 15 204 376570 1967.84 988 961 190.9
B 6 205 61393 316.61 988 961 190.9
B 4 200 43944 225.19 988 961 190.9
C 15 208 2103335 9708.88 922 923 216.5
C 8 128 24200 107.49 922 923 216.5
C 1 16 18880 82.92 922 923 216.5
D 7 39 192952 828.48 948 917 231.8
D 5 233 38652 162.8 948 917 231.8
D 13 223 36543 153.7 948 917 231.8

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