ASTROSAT CZTI

Data Quality Report

Orbit 46393

Creation date: 2024-06-27T23:22:39.325308
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_070T04_9000006204_46393cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46393cztM0_level2_quad_clean.evt
Size (bytes)627,589,440126,345,600
Size598.5 MB 120.5 MB
Events in quadrant A7,474,451843,843
Events in quadrant B4,038,396878,664
Events in quadrant C4,051,413830,626
Events in quadrant D7,050,322718,114

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277630
B0176960
C0178820
D0265290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79661822.284710%
B7967750.941383%
C79671431.794904%
D79677249.087486%

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 7966 7966 76 76 0.95% 0.95%
B 7967 7967 35 35 0.44% 0.44%
C 7967 7967 98 98 1.23% 1.23%
D 7967 7967 569 569 7.14% 7.14%

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 3732711 20617.92 877 858 181.0
A 0 247 216104 1189.2 877 858 181.0
A 0 243 38014 205.28 877 858 181.0
B 5 172 201782 1153.15 881 852 174.2
B 5 32 111384 634.35 881 852 174.2
B 0 190 58736 332.2 881 852 174.2
C 12 2 266287 1297.26 868 871 204.6
C 14 254 252524 1229.99 868 871 204.6
C 3 233 63792 307.54 868 871 204.6
D 11 224 2102864 9946.29 839 811 211.3
D 1 52 813260 3844.27 839 811 211.3
D 2 249 267701 1262.84 839 811 211.3

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