ASTROSAT CZTI

Data Quality Report

Orbit 34101

Creation date: 2024-06-27T20:56:32.350657
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_208T01_9000004870_34101cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34101cztM0_level2_quad_clean.evt
Size (bytes)474,048,00083,364,480
Size452.1 MB 79.5 MB
Events in quadrant A2,445,435557,167
Events in quadrant B3,921,481550,538
Events in quadrant C3,370,048540,273
Events in quadrant D4,267,807512,741

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105863
B0150772
C0132282
D0162462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A518680.154261%
B51864158.002314%
C51861993.837254%
D51861683.239491%

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 7008 5187 0 0 0.00% 0.00%
B 7008 5187 289 289 4.12% 5.57%
C 7008 5187 149 149 2.13% 2.87%
D 7008 5187 156 156 2.23% 3.01%

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 6 24882 194.76 621 609 124.6
A 10 83 19528 151.8 621 609 124.6
A 13 254 8796 65.69 621 609 124.6
B 5 172 1351741 11514.7 606 592 117.3
B 8 128 37068 310.85 606 592 117.3
B 0 189 36928 309.66 606 592 117.3
C 0 10 442431 3159.5 599 605 139.8
C 14 254 286902 2047.31 599 605 139.8
C 15 214 221894 1582.44 599 605 139.8
D 8 195 1092357 7502.74 595 579 145.5
D 2 250 459231 3151.87 595 579 145.5
D 13 249 204264 1399.73 595 579 145.5

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