ASTROSAT CZTI

Data Quality Report

Orbit 05243

Creation date: 2024-06-27T14:52:59.736734
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/AS1C01_015T01_9000000668_05243cztM0_level2.evt modeM0/AS1C01_015T01_9000000668_05243cztM0_level2_quad_clean.evt
Size (bytes)588,781,44068,135,040
Size561.5 MB 65.0 MB
Events in quadrant A3,381,638402,073
Events in quadrant B3,443,457402,809
Events in quadrant C3,370,721396,119
Events in quadrant D7,137,244350,557

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151272
B0152021
C0152151
D0260611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73421502.043040%
B73421381.879597%
C73421001.362027%
D7342139819.041133%

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 7652 7343 0 0 0.00% 0.00%
B 7652 7343 0 0 0.00% 0.00%
C 7652 7343 1 1 0.01% 0.01%
D 7652 7343 1053 1053 13.76% 14.34%

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 13 14 8633 42.97 874 852 181.1
A 0 226 8463 42.03 874 852 181.1
A 12 194 8433 41.86 874 852 181.1
B 0 229 42603 240.85 876 854 173.3
B 12 111 17493 95.99 876 854 173.3
B 11 111 13771 74.52 876 854 173.3
C 8 128 23617 115.49 840 843 197.2
C 1 16 22686 110.77 840 843 197.2
C 7 159 17124 82.56 840 843 197.2
D 11 145 3828390 19963.66 779 755 191.7
D 8 195 310121 1613.55 779 755 191.7
D 2 136 42817 219.38 779 755 191.7

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