ASTROSAT CZTI

Data Quality Report

Orbit 30040

Creation date: 2024-06-27T20:10:22.222592
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/AS1A10_082T06_9000004318_30040cztM0_level2.evt modeM0/AS1A10_082T06_9000004318_30040cztM0_level2_quad_clean.evt
Size (bytes)573,468,48079,251,840
Size546.9 MB 75.6 MB
Events in quadrant A3,543,708486,196
Events in quadrant B5,943,478478,068
Events in quadrant C3,639,267463,898
Events in quadrant D3,748,345465,527

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150932
B0228281
C0152331
D0157111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72661201.651528%
B72672853.921838%
C72672162.972341%
D72671091.499931%

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 7501 7267 0 0 0.00% 0.00%
B 7502 7268 30 30 0.40% 0.41%
C 7502 7268 0 0 0.00% 0.00%
D 7502 7268 40 40 0.53% 0.55%

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 14636 74.78 912 891 183.8
A 8 192 13435 68.25 912 891 183.8
A 3 1 9402 46.31 912 891 183.8
B 6 159 2061148 11938.54 889 865 172.6
B 0 190 247255 1427.73 889 865 172.6
B 5 255 110042 632.64 889 865 172.6
C 14 238 178373 873.31 864 869 203.3
C 14 254 57859 280.39 864 869 203.3
C 3 233 18981 89.11 864 869 203.3
D 8 195 192745 871.15 877 855 220.3
D 13 138 88419 397.53 877 855 220.3
D 7 69 38030 168.77 877 855 220.3

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