ASTROSAT CZTI

Data Quality Report

Orbit 07153

Creation date: 2024-06-27T15:16:14.636302
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/AS1G06_029T02_9000000974_07153cztM0_level2.evt modeM0/AS1G06_029T02_9000000974_07153cztM0_level2_quad_clean.evt
Size (bytes)489,496,32080,110,080
Size466.8 MB 76.4 MB
Events in quadrant A3,500,989487,068
Events in quadrant B3,392,668497,399
Events in quadrant C3,200,181488,893
Events in quadrant D4,258,120468,205

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151792
B0145561
C0144011
D0171751

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69483545.094991%
B69481331.914220%
C69481171.683938%
D69482934.217041%

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 7468 6948 78 78 1.04% 1.12%
B 7468 6948 5 5 0.07% 0.07%
C 7468 6948 9 9 0.12% 0.13%
D 7468 6948 143 143 1.91% 2.06%

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 14 111 359990 2178.48 805 785 164.9
A 3 1 17432 100.96 805 785 164.9
A 13 248 14489 83.11 805 785 164.9
B 0 214 90627 565.06 821 800 159.0
B 4 81 45765 282.85 821 800 159.0
B 0 219 44283 273.53 821 800 159.0
C 4 254 93798 504.7 793 796 184.3
C 13 61 6212 29.39 793 796 184.3
C 8 128 5518 25.63 793 796 184.3
D 2 216 898486 4552.04 791 765 197.2
D 8 195 262673 1328.05 791 765 197.2
D 2 14 84069 422.41 791 765 197.2

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