ASTROSAT CZTI

Data Quality Report

Orbit 47972

Creation date: 2024-08-11T14:08:18.429063
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_062T02_9000006384_47972cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47972cztM0_level2_quad_clean.evt
Size (bytes)523,200,960125,651,520
Size499.0 MB 119.8 MB
Events in quadrant A7,545,552827,071
Events in quadrant B3,488,092865,137
Events in quadrant C3,773,607819,769
Events in quadrant D3,952,080747,565

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277241
B0162271
C0171182
D0177861

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78362032.590607%
B7836430.548749%
C78351091.391193%
D78351191.518826%

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 7836 7836 8 8 0.10% 0.10%
B 7836 7836 0 0 0.00% 0.00%
C 7835 7835 93 93 1.19% 1.19%
D 7835 7835 114 114 1.46% 1.46%

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 4157173 22782.9 872 852 182.4
A 0 31 12951 66.32 872 852 182.4
A 13 254 10452 52.62 872 852 182.4
B 12 111 22806 125.5 876 849 175.0
B 11 111 21186 116.24 876 849 175.0
B 14 111 20589 112.83 876 849 175.0
C 1 3 269833 1307.1 865 867 205.8
C 14 254 87098 419.06 865 867 205.8
C 12 2 33092 156.6 865 867 205.8
D 11 224 387062 1773.87 867 838 217.7
D 2 249 124939 569.98 867 838 217.7
D 14 34 80999 368.17 867 838 217.7

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