ASTROSAT CZTI

Data Quality Report

Orbit 24162

Creation date: 2024-06-27T19:02:57.668920
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/AS1A07_067T01_9000003578_24162cztM0_level2.evt modeM0/AS1A07_067T01_9000003578_24162cztM0_level2_quad_clean.evt
Size (bytes)528,868,80085,080,960
Size504.4 MB 81.1 MB
Events in quadrant A3,708,627516,480
Events in quadrant B3,750,435522,699
Events in quadrant C4,282,663504,940
Events in quadrant D3,760,240504,746

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156934
B0158044
C0174164
D0159984

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75781632.150963%
B75781662.190552%
C75783664.829770%
D75781311.728688%

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 7863 7580 0 0 0.00% 0.00%
B 7863 7580 2 2 0.03% 0.03%
C 7863 7579 100 100 1.27% 1.32%
D 7863 7580 3 3 0.04% 0.04%

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 13 254 12502 60.15 960 940 192.2
A 3 137 8516 39.41 960 940 192.2
A 0 226 8490 39.28 960 940 192.2
B 12 111 21933 114.79 947 923 183.0
B 11 111 19826 103.28 947 923 183.0
B 4 52 19097 99.3 947 923 183.0
C 2 16 541575 2546.04 906 907 212.4
C 14 238 143452 671.25 906 907 212.4
C 3 233 44593 205.72 906 907 212.4
D 8 195 140654 613.53 935 905 227.8
D 2 234 31875 135.96 935 905 227.8
D 1 52 23566 99.48 935 905 227.8

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