ASTROSAT CZTI

Data Quality Report

Orbit 03434

Creation date: 2024-06-27T14:28:57.999556
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_167T01_9000000456_03434cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03434cztM0_level2_quad_clean.evt
Size (bytes)531,938,880106,050,240
Size507.3 MB 101.1 MB
Events in quadrant A3,864,531672,784
Events in quadrant B4,326,335673,690
Events in quadrant C3,783,441675,812
Events in quadrant D3,606,161647,314

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168524
B0180703
C0167703
D0166043

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77961031.321190%
B77961792.296049%
C7796971.244228%
D7796490.628527%

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 8501 7799 7 7 0.08% 0.09%
B 8501 7799 2 2 0.02% 0.03%
C 8501 7799 7 7 0.08% 0.09%
D 8501 7799 16 16 0.19% 0.21%

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 0 118 135733 689.72 945 926 195.5
A 0 31 25925 127.9 945 926 195.5
A 0 226 21611 105.83 945 926 195.5
B 15 204 506346 2663.96 960 937 189.7
B 2 249 32599 166.89 960 937 189.7
B 4 81 21042 105.97 960 937 189.7
C 1 192 113823 512.9 926 934 220.1
C 15 208 28987 127.46 926 934 220.1
C 12 4 8995 36.62 926 934 220.1
D 9 85 45759 201.71 913 887 222.5
D 13 223 23829 103.13 913 887 222.5
D 2 206 19823 85.12 913 887 222.5

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