ASTROSAT CZTI

Data Quality Report

Orbit 32788

Creation date: 2024-06-27T20:42:01.419400
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/AS1T04_064T01_9000004730_32788cztM0_level2.evt modeM0/AS1T04_064T01_9000004730_32788cztM0_level2_quad_clean.evt
Size (bytes)595,036,80084,421,440
Size567.5 MB 80.5 MB
Events in quadrant A3,806,329545,744
Events in quadrant B3,738,389571,192
Events in quadrant C3,746,739562,963
Events in quadrant D6,392,977526,788

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142013
B0142242
C0141822
D0224642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49824338.691289%
B49823276.563629%
C49823156.322762%
D49824549.112806%

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 7075 4983 272 272 3.84% 5.46%
B 7075 4983 156 156 2.20% 3.13%
C 7075 4983 281 281 3.97% 5.64%
D 7075 4983 348 348 4.92% 6.98%

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 15 237 1184898 9550.34 621 612 124.0
A 14 238 122043 979.25 621 612 124.0
A 7 16 30774 243.23 621 612 124.0
B 0 219 638293 5346.87 629 616 119.3
B 5 172 449526 3764.07 629 616 119.3
B 5 200 57679 478.47 629 616 119.3
C 0 10 962244 6892.25 604 610 139.5
C 3 233 369482 2643.79 604 610 139.5
C 4 254 14935 102.67 604 610 139.5
D 8 195 1768975 11402.75 606 593 155.1
D 10 203 629229 4053.53 606 593 155.1
D 2 250 340899 2194.34 606 593 155.1

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