ASTROSAT CZTI

Data Quality Report

Orbit 47455

Creation date: 2024-07-07T17:19:09.122609
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/AS1A13_089T01_9000006330_47455cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47455cztM0_level2_quad_clean.evt
Size (bytes)781,441,920138,588,480
Size745.2 MB 132.2 MB
Events in quadrant A9,798,652922,710
Events in quadrant B5,062,547956,847
Events in quadrant C4,170,419934,011
Events in quadrant D9,198,868757,759

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01840
B01840
C01840
D01840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0362602
B0210152
C0187802
D0335832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A89995255.833982%
B89993984.422714%
C90001221.355556%
D9000125613.955556%

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 10369 9001 106 106 1.02% 1.18%
B 10369 9001 131 131 1.26% 1.46%
C 10370 9002 6 6 0.06% 0.07%
D 10370 9002 1203 1203 11.60% 13.36%

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 10 83 5044059 23944.61 1011 988 210.6
A 9 191 675652 3203.32 1011 988 210.6
A 14 235 154777 730.19 1011 988 210.6
B 5 32 757829 3758.96 1013 983 201.3
B 0 198 118586 584.09 1013 983 201.3
B 0 190 83077 407.73 1013 983 201.3
C 0 207 166758 696.04 1007 1011 238.1
C 3 233 46013 188.98 1007 1011 238.1
C 12 250 15421 60.51 1007 1011 238.1
D 6 112 4202529 16886.41 973 940 248.8
D 12 233 516803 2073.28 973 940 248.8
D 2 249 301256 1206.98 973 940 248.8

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