ASTROSAT CZTI

Data Quality Report

Orbit 43193

Creation date: 2024-06-27T22:49:08.223600
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/AS1A09_036T17_9000005858_43193cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43193cztM0_level2_quad_clean.evt
Size (bytes)524,989,440135,443,520
Size500.7 MB 129.2 MB
Events in quadrant A5,994,212891,541
Events in quadrant B4,166,994933,759
Events in quadrant C4,017,321884,162
Events in quadrant D4,606,654811,716

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233603
B0181292
C0172062
D0195602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83473083.689948%
B8348780.934356%
C8348390.467178%
D83481281.533301%

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 11332 8349 260 260 2.29% 3.11%
B 11333 8350 35 35 0.31% 0.42%
C 11333 8350 28 28 0.25% 0.34%
D 11333 8350 122 122 1.08% 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 15 237 820958 4409.38 905 887 186.0
A 10 83 774932 4161.9 905 887 186.0
A 15 222 563516 3025.16 905 887 186.0
B 0 186 210029 1182.42 912 885 176.9
B 0 229 204593 1151.69 912 885 176.9
B 0 189 78536 439.01 912 885 176.9
C 15 214 337862 1590.42 898 904 211.9
C 15 159 102982 481.8 898 904 211.9
C 14 254 63057 293.36 898 904 211.9
D 1 52 644004 2874.03 897 871 223.8
D 13 249 202201 899.7 897 871 223.8
D 12 6 162337 721.56 897 871 223.8

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