ASTROSAT CZTI

Data Quality Report

Orbit 38433

Creation date: 2024-06-27T21:52:40.929693
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/AS1A12_018T01_9000005386_38433cztM0_level2.fits modeM0/AS1A12_018T01_9000005386_38433cztM0_level2_quad_clean.evt
Size (bytes)384,523,20097,894,080
Size366.7 MB 93.4 MB
Events in quadrant A3,037,876689,530
Events in quadrant B3,312,549667,819
Events in quadrant C3,601,648636,196
Events in quadrant D3,875,735605,483

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121263
B0130542
C0138292
D0151962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5219310.593984%
B52192204.215367%
C52192434.656064%
D52191332.548381%

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 7313 5220 20 20 0.27% 0.38%
B 7313 5220 162 162 2.22% 3.10%
C 7313 5220 186 186 2.54% 3.56%
D 7313 5220 103 103 1.41% 1.97%

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 418849 3341.58 626 614 125.2
A 13 248 79772 632.45 626 614 125.2
A 9 143 60580 479.11 626 614 125.2
B 5 184 565913 4961.99 610 595 113.9
B 0 186 77694 676.72 610 595 113.9
B 0 183 72336 629.7 610 595 113.9
C 4 254 962438 7016.59 599 602 137.1
C 15 214 218623 1590.46 599 602 137.1
C 0 10 36734 263.58 599 602 137.1
D 12 235 401021 2765.71 610 595 144.8
D 13 200 262487 1808.87 610 595 144.8
D 13 249 257318 1773.16 610 595 144.8

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