ASTROSAT CZTI

Data Quality Report

Orbit 30091

Creation date: 2024-06-27T20:10:40.791838
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/AS1A10_050T05_9000004330_30091cztM0_level2.evt modeM0/AS1A10_050T05_9000004330_30091cztM0_level2_quad_clean.evt
Size (bytes)517,622,400108,348,480
Size493.6 MB 103.3 MB
Events in quadrant A3,166,485716,351
Events in quadrant B5,189,318725,019
Events in quadrant C3,326,828705,026
Events in quadrant D3,563,721692,316

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134162
B0196682
C0138912
D0146942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6341150.236556%
B6342811.277200%
C63421001.576790%
D6342540.851466%

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 7526 6342 1 1 0.01% 0.02%
B 7527 6343 2 2 0.03% 0.03%
C 7527 6343 0 0 0.00% 0.00%
D 7527 6343 26 26 0.35% 0.41%

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 8 192 14508 84.34 816 800 162.5
A 13 254 11988 68.84 816 800 162.5
A 3 137 7632 42.04 816 800 162.5
B 6 159 1875440 12074.88 817 797 155.3
B 0 229 36781 231.78 817 797 155.3
B 0 190 28883 180.91 817 797 155.3
C 14 238 146274 772.6 801 808 188.3
C 14 254 24534 126.01 801 808 188.3
C 3 233 17945 91.02 801 808 188.3
D 8 195 119119 621.04 798 782 190.5
D 2 250 91181 474.42 798 782 190.5
D 13 104 79653 413.92 798 782 190.5

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