ASTROSAT CZTI

Data Quality Report

Orbit 03332

Creation date: 2024-06-27T14:27:41.605944
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/AS1G05_246T01_9000000450_03332cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03332cztM0_level2_quad_clean.evt
Size (bytes)557,648,64083,384,640
Size531.8 MB 79.5 MB
Events in quadrant A3,413,768502,692
Events in quadrant B4,140,244514,989
Events in quadrant C4,714,893489,206
Events in quadrant D4,104,882490,312

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155612
B0169301
C0192581
D0178071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75832162.848477%
B75833124.114467%
C75834956.527759%
D75832643.481472%

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 7943 7584 0 0 0.00% 0.00%
B 7943 7584 74 74 0.93% 0.98%
C 7943 7584 260 260 3.27% 3.43%
D 7943 7584 83 83 1.04% 1.09%

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 8 15 23637 125.89 875 852 181.0
A 13 14 11004 56.09 875 852 181.0
A 0 226 9475 47.64 875 852 181.0
B 15 204 387481 2229.76 885 862 173.4
B 6 203 159284 913.67 885 862 173.4
B 14 167 136503 782.29 885 862 173.4
C 9 144 803216 4094.39 839 841 196.0
C 1 192 449770 2290.81 839 841 196.0
C 14 223 99313 502.49 839 841 196.0
D 12 246 650869 3104.1 854 828 209.4
D 13 223 121148 574.56 854 828 209.4
D 2 216 40072 187.4 854 828 209.4

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