ASTROSAT CZTI

Data Quality Report

Orbit 38113

Creation date: 2024-06-27T21:48:32.722351
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/AS1A11_065T21_9000005364_38113cztM0_level2.fits modeM0/AS1A11_065T21_9000005364_38113cztM0_level2_quad_clean.evt
Size (bytes)1,505,024,640313,781,760
Size1.4 GB 299.2 MB
Events in quadrant A11,237,7502,181,571
Events in quadrant B9,247,6102,207,556
Events in quadrant C10,835,5132,142,039
Events in quadrant D22,974,6501,706,844

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0448965
B0396764
C0436224
D0809554

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03720
B03720
C03720
D03720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A183371931.052517%
B183371981.079784%
C183374272.328625%
D18337328317.903692%

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 25478 18341 145 145 0.57% 0.79%
B 25478 18341 128 128 0.50% 0.70%
C 25478 18341 418 418 1.64% 2.28%
D 25478 18341 3328 3328 13.06% 18.15%

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 12 16 1286181 3051.22 2111 2073 420.9
A 10 83 1036612 2458.21 2111 2073 420.9
A 12 189 295458 697.12 2111 2073 420.9
B 0 229 525595 1315.8 2102 2046 397.9
B 5 172 269211 671.45 2102 2046 397.9
B 0 189 81039 198.53 2102 2046 397.9
C 1 23 1534035 3236.85 2059 2077 473.3
C 15 214 740296 1559.77 2059 2077 473.3
C 0 239 331898 696.87 2059 2077 473.3
D 12 235 7406133 15000.84 1922 1888 493.6
D 1 20 6993504 14164.86 1922 1888 493.6
D 12 233 214220 430.18 1922 1888 493.6

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