ASTROSAT CZTI

Data Quality Report

Orbit 29012

Creation date: 2024-06-27T19:59:10.776558
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_103T04_9000004158_29012cztM0_level2.evt modeM0/AS1A10_103T04_9000004158_29012cztM0_level2_quad_clean.evt
Size (bytes)614,352,960112,760,640
Size585.9 MB 107.5 MB
Events in quadrant A3,986,940731,825
Events in quadrant B4,107,392739,418
Events in quadrant C4,084,343700,595
Events in quadrant D5,858,559660,515

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173372
B0175122
C0174652
D0231312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83751171.397015%
B83761932.304202%
C83761842.196753%
D83763724.441261%

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 9105 8377 0 0 0.00% 0.00%
B 9106 8378 0 0 0.00% 0.00%
C 9106 8378 0 0 0.00% 0.00%
D 9106 8378 264 264 2.90% 3.15%

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 13 254 12935 57.03 1033 1008 209.1
A 3 137 10508 45.43 1033 1008 209.1
A 0 226 8685 36.71 1033 1008 209.1
B 12 111 25568 124.15 1027 1000 197.9
B 0 229 24225 117.36 1027 1000 197.9
B 11 111 22905 110.69 1027 1000 197.9
C 14 238 156605 660.47 998 1005 235.6
C 2 114 19946 80.4 998 1005 235.6
C 3 233 10257 39.27 998 1005 235.6
D 1 52 1282901 5432.63 980 952 236.0
D 8 195 653137 2763.82 980 952 236.0
D 7 80 71102 297.28 980 952 236.0

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