ASTROSAT CZTI

Data Quality Report

Orbit 04141

Creation date: 2024-06-27T14:37:58.545158
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_240T01_9000000536_04141cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04141cztM0_level2_quad_clean.evt
Size (bytes)248,489,28035,651,520
Size237.0 MB 34.0 MB
Events in quadrant A1,687,944209,804
Events in quadrant B1,892,337209,101
Events in quadrant C1,646,083203,323
Events in quadrant D2,045,893195,193

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075031
B079491
C074811
D087841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3697100.270490%
B3697300.811469%
C369780.216392%
D36971042.813092%

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 3696 3696 0 0 0.00% 0.00%
B 3696 3696 16 16 0.43% 0.43%
C 3696 3696 0 0 0.00% 0.00%
D 3697 3697 119 119 3.22% 3.22%

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 13 14 20919 234.13 429 420 87.6
A 15 234 5036 52.72 429 420 87.6
A 0 226 4922 51.42 429 420 87.6
B 10 16 109135 1292.77 436 427 84.1
B 15 204 34315 403.0 436 427 84.1
B 14 167 20531 239.08 436 427 84.1
C 10 65 13714 134.53 417 418 98.8
C 13 61 3455 30.73 417 418 98.8
C 1 16 2706 23.15 417 418 98.8
D 13 239 443384 4413.42 411 400 100.4
D 2 63 15155 147.0 411 400 100.4
D 10 172 14442 139.9 411 400 100.4

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