ASTROSAT CZTI

Data Quality Report

Orbit 44323

Creation date: 2024-06-27T23:02:07.034514
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_059T01_9000005990_44323cztM0_level2.fits modeM0/AS1A13_059T01_9000005990_44323cztM0_level2_quad_clean.evt
Size (bytes)1,212,664,320291,188,160
Size1.1 GB 277.7 MB
Events in quadrant A12,523,6921,949,704
Events in quadrant B9,842,8461,968,753
Events in quadrant C8,410,3271,945,132
Events in quadrant D12,669,9591,668,018

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052380114
B042100111
C03874786
D05095583

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03800
B03800
C03800
D03800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0161
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A186313061.642424%
B186294632.485372%
C18633900.483014%
D1863912326.609797%

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 20509 18643 26 26 0.13% 0.14%
B 20509 18648 171 171 0.83% 0.92%
C 20509 18652 10 10 0.05% 0.05%
D 20509 18646 978 978 4.77% 5.25%

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 4125860 9626.56 2085 2041 428.4
A 7 3 187577 433.11 2085 2041 428.4
A 15 223 59126 133.26 2085 2041 428.4
B 5 255 900863 2194.18 2073 2006 409.7
B 0 219 261829 634.25 2073 2006 409.7
B 0 190 158637 382.35 2073 2006 409.7
C 14 254 254555 519.3 2063 2077 486.2
C 1 3 52202 103.1 2063 2077 486.2
C 3 233 51275 101.19 2063 2077 486.2
D 13 249 1180973 2353.94 2003 1945 500.9
D 1 20 847828 1688.82 2003 1945 500.9
D 13 138 535613 1065.47 2003 1945 500.9

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