ASTROSAT CZTI

Data Quality Report

Orbit 05805

Creation date: 2024-06-27T14:59:22.200754
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/AS1G06_089T01_9000000746_05805cztM0_level2.evt modeM0/AS1G06_089T01_9000000746_05805cztM0_level2_quad_clean.evt
Size (bytes)509,857,92074,658,240
Size486.2 MB 71.2 MB
Events in quadrant A4,299,742453,927
Events in quadrant B3,249,136476,103
Events in quadrant C3,060,689461,477
Events in quadrant D4,399,598424,769

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168643
B0134692
C0133212
D0174572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63613295.172143%
B63611221.917937%
C6361781.226222%
D63613535.549442%

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 7571 6362 168 168 2.22% 2.64%
B 7571 6362 0 0 0.00% 0.00%
C 7571 6362 1 1 0.01% 0.02%
D 7571 6362 306 306 4.04% 4.81%

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 15 79 731274 4563.84 789 773 160.1
A 15 236 352530 2197.62 789 773 160.1
A 0 31 172780 1074.62 789 773 160.1
B 15 204 84952 547.37 807 791 153.8
B 0 219 36378 231.45 807 791 153.8
B 12 111 14455 88.87 807 791 153.8
C 1 16 54814 302.84 768 772 178.5
C 13 61 6273 30.83 768 772 178.5
C 14 67 4383 20.24 768 772 178.5
D 8 230 816877 4394.68 758 735 185.7
D 7 203 641463 3450.13 758 735 185.7
D 2 136 35931 189.52 758 735 185.7

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