ASTROSAT CZTI

Data Quality Report

Orbit 13524

Creation date: 2024-06-27T16:42:06.167535
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/AS1A04_048T01_9000001992_13524cztM0_level2.evt modeM0/AS1A04_048T01_9000001992_13524cztM0_level2_quad_clean.evt
Size (bytes)520,813,440102,271,680
Size496.7 MB 97.5 MB
Events in quadrant A3,393,818657,968
Events in quadrant B3,573,097665,020
Events in quadrant C4,305,631645,252
Events in quadrant D3,993,752609,754

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152372
B0156181
C0175291
D0175061

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7458190.254760%
B7458660.884956%
C7458610.817914%
D74583304.424779%

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 7784 7460 0 0 0.00% 0.00%
B 7784 7459 11 11 0.14% 0.15%
C 7784 7460 44 44 0.57% 0.59%
D 7784 7459 181 181 2.33% 2.43%

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 1 162 10829 55.47 879 860 179.7
A 0 226 7828 38.77 879 860 179.7
A 12 194 6834 33.24 879 860 179.7
B 3 64 33822 195.05 880 857 169.0
B 4 142 31143 179.2 880 857 169.0
B 4 173 21916 124.6 880 857 169.0
C 3 233 977363 4952.43 850 855 197.2
C 8 128 7412 33.25 850 855 197.2
C 13 61 6178 26.99 850 855 197.2
D 13 104 796861 4008.75 822 798 198.6
D 13 122 48665 241.04 822 798 198.6
D 2 234 29397 144.02 822 798 198.6

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