ASTROSAT CZTI

Data Quality Report

Orbit 32993

Creation date: 2024-06-27T20:44:21.638410
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/AS1A11_080T01_9000004756_32993cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_32993cztM0_level2_quad_clean.evt
Size (bytes)437,405,76072,380,160
Size417.1 MB 69.0 MB
Events in quadrant A2,593,995479,032
Events in quadrant B3,657,748444,300
Events in quadrant C2,678,787447,475
Events in quadrant D3,937,398430,794

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114103
B0145162
C0116262
D0153092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A557350.089718%
B55733235.795801%
C5573611.094563%
D55731502.691549%

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 7035 5574 1 1 0.01% 0.02%
B 7035 5574 226 226 3.21% 4.05%
C 7035 5574 27 27 0.38% 0.48%
D 7035 5574 117 117 1.66% 2.10%

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 47 18919 136.18 661 649 134.2
A 13 254 10120 70.59 661 649 134.2
A 13 6 8485 58.41 661 649 134.2
B 5 172 955266 7722.4 640 623 123.6
B 0 219 64311 515.19 640 623 123.6
B 0 229 41527 330.89 640 623 123.6
C 0 10 158843 1079.32 630 637 146.6
C 14 67 41742 280.43 630 637 146.6
C 3 233 13675 88.95 630 637 146.6
D 8 195 607667 3575.0 627 615 169.8
D 2 250 423120 2488.18 627 615 169.8
D 2 249 138160 810.02 627 615 169.8

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