ASTROSAT CZTI

Data Quality Report

Orbit 17592

Creation date: 2024-06-27T17:38:23.169598
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/AS1A05_056T01_9000002604_17592cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17592cztM0_level2_quad_clean.evt
Size (bytes)551,229,120103,239,360
Size525.7 MB 98.5 MB
Events in quadrant A4,262,773662,943
Events in quadrant B3,694,888666,833
Events in quadrant C4,445,000631,815
Events in quadrant D3,769,548630,200

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179703
B0160703
C0181203
D0166223

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76872523.278262%
B76871331.730194%
C76881732.250260%
D76881692.198231%

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 8382 7690 86 86 1.03% 1.12%
B 8382 7690 7 7 0.08% 0.09%
C 8383 7691 0 0 0.00% 0.00%
D 8383 7691 95 95 1.13% 1.24%

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 14 237 664326 3463.57 933 912 191.5
A 0 13 11040 52.88 933 912 191.5
A 0 226 8110 37.58 933 912 191.5
B 0 189 33237 179.24 933 909 180.4
B 12 111 22697 120.8 933 909 180.4
B 11 111 19330 102.13 933 909 180.4
C 3 233 754565 3580.06 888 894 210.5
C 14 238 136120 642.34 888 894 210.5
C 5 218 71474 335.27 888 894 210.5
D 1 52 280826 1275.84 899 872 219.4
D 13 189 50412 225.77 899 872 219.4
D 10 172 32152 142.55 899 872 219.4

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