ASTROSAT CZTI

Data Quality Report

Orbit 43639

Creation date: 2024-06-27T22:53:58.819407
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_068T05_9000005894_43639cztM0_level2.fits modeM0/AS1A12_068T05_9000005894_43639cztM0_level2_quad_clean.evt
Size (bytes)1,225,200,960106,427,520
Size1.1 GB 101.5 MB
Events in quadrant A5,532,036854,970
Events in quadrant B6,365,527851,920
Events in quadrant C19,980,226306,481
Events in quadrant D12,868,604656,790

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216621
B0243631
C0647967
D0437481

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78622282.900025%
B78636798.635381%
C7862749195.281099%
D7862332342.266599%

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 7912 7863 50 50 0.63% 0.64%
B 7913 7864 241 241 3.05% 3.06%
C 7911 7861 7295 7295 92.21% 92.80%
D 7912 7863 2784 2784 35.19% 35.41%

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 879841 4785.1 880 859 183.7
A 15 223 332353 1804.62 880 859 183.7
A 15 222 242037 1312.95 880 859 183.7
B 4 206 1720561 10345.1 860 834 166.2
B 5 235 796104 4783.98 860 834 166.2
B 0 200 109697 654.87 860 834 166.2
C 15 142 8918170 109548.2 345 346 81.4
C 15 174 7258187 89156.66 345 346 81.4
C 3 233 1124616 13810.74 345 346 81.4
D 4 216 3856360 19499.96 756 731 197.7
D 4 221 1341528 6781.12 756 731 197.7
D 14 210 545157 2753.45 756 731 197.7

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