ASTROSAT CZTI

Data Quality Report

Orbit 29605

Creation date: 2024-06-27T20:05:58.027583
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/AS1T03_286T01_9000004268_29605cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29605cztM0_level2_quad_clean.evt
Size (bytes)510,419,52097,856,640
Size486.8 MB 93.3 MB
Events in quadrant A3,042,365634,849
Events in quadrant B3,130,233648,250
Events in quadrant C3,574,501618,927
Events in quadrant D5,256,411594,516

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136171
B0137301
C0148291
D0201771

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6696951.418757%
B66971091.627594%
C66972063.076004%
D66974096.107212%

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 7096 6696 0 0 0.00% 0.00%
B 7097 6697 1 1 0.01% 0.01%
C 7097 6698 0 0 0.00% 0.00%
D 7097 6698 296 296 4.17% 4.42%

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 12441 73.43 787 771 158.9
A 3 137 8147 46.41 787 771 158.9
A 0 226 6630 36.87 787 771 158.9
B 12 111 18790 119.93 787 765 150.3
B 0 230 17715 112.78 787 765 150.3
B 11 111 16822 106.83 787 765 150.3
C 3 233 409534 2332.86 753 757 175.2
C 14 238 154619 878.08 753 757 175.2
C 14 254 46666 262.0 753 757 175.2
D 7 238 1256776 7229.67 740 721 173.7
D 12 227 579484 3331.27 740 721 173.7
D 8 195 438048 2517.19 740 721 173.7

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