ASTROSAT CZTI

Data Quality Report

Orbit 47506

Creation date: 2024-07-11T02:49:20.336675
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/AS1A13_037T05_9000006332_47506cztM0_level2.fits modeM0/AS1A13_037T05_9000006332_47506cztM0_level2_quad_clean.evt
Size (bytes)482,031,360105,094,080
Size459.7 MB 100.2 MB
Events in quadrant A6,543,637701,512
Events in quadrant B3,908,622714,305
Events in quadrant C2,781,709699,358
Events in quadrant D4,121,724628,284

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238621
B0158731
C0130231
D0168511

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62832844.520134%
B62833215.109024%
C6283280.445647%
D62832263.597008%

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 7243 6284 33 33 0.46% 0.53%
B 7243 6284 183 183 2.53% 2.91%
C 7243 6284 12 12 0.17% 0.19%
D 7243 6284 203 203 2.80% 3.23%

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 3689880 25032.65 714 702 147.4
A 9 191 52385 350.69 714 702 147.4
A 15 235 26772 176.9 714 702 147.4
B 5 32 542232 3929.09 707 687 137.8
B 0 200 422170 3058.0 707 687 137.8
B 0 198 84719 609.68 707 687 137.8
C 0 207 64053 383.41 697 700 165.2
C 13 61 4664 23.99 697 700 165.2
C 14 254 1839 6.89 697 700 165.2
D 2 165 698202 3962.19 690 667 176.0
D 2 249 452344 2565.65 690 667 176.0
D 7 55 165033 933.64 690 667 176.0

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