ASTROSAT CZTI

Data Quality Report

Orbit 04545

Creation date: 2024-06-27T14:43:37.414769
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_233T10_9000000570_04545cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04545cztM0_level2_quad_clean.evt
Size (bytes)432,011,52061,721,280
Size412.0 MB 58.9 MB
Events in quadrant A4,224,717368,942
Events in quadrant B2,937,344371,724
Events in quadrant C2,799,114367,187
Events in quadrant D2,728,342355,794

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162922
B0124421
C0123751
D0122811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57943926.765620%
B5794831.432516%
C5794641.104591%
D5794370.638592%

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 7099 5795 244 244 3.44% 4.21%
B 7099 5795 9 9 0.13% 0.16%
C 7099 5795 19 19 0.27% 0.33%
D 7099 5795 8 8 0.11% 0.14%

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 0 13 1443191 10488.08 680 664 137.5
A 8 15 89882 648.67 680 664 137.5
A 15 31 37764 269.74 680 664 137.5
B 4 80 76283 569.24 699 682 132.8
B 15 54 35694 263.62 699 682 132.8
B 12 18 24178 176.91 699 682 132.8
C 9 247 116447 752.27 667 669 153.9
C 14 48 61061 392.4 667 669 153.9
C 1 16 15581 96.89 667 669 153.9
D 13 235 106262 609.24 658 645 173.4
D 2 136 30518 172.32 658 645 173.4
D 7 67 28221 159.07 658 645 173.4

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