ASTROSAT CZTI

Data Quality Report

Orbit 30054

Creation date: 2024-06-27T20:10:18.921070
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_071T09_9000004320_30054cztM0_level2.evt modeM0/AS1A10_071T09_9000004320_30054cztM0_level2_quad_clean.evt
Size (bytes)585,806,40094,838,400
Size558.7 MB 90.4 MB
Events in quadrant A3,728,862603,270
Events in quadrant B5,779,036598,732
Events in quadrant C3,787,779572,427
Events in quadrant D3,934,254572,853

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157752
B0229572
C0157813
D0161802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75391882.493699%
B75393364.456825%
C75382403.183868%
D75381401.857257%

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 7809 7540 2 2 0.03% 0.03%
B 7809 7540 18 18 0.23% 0.24%
C 7808 7539 2 2 0.03% 0.03%
D 7808 7539 25 25 0.32% 0.33%

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 8 192 22916 113.79 955 935 193.2
A 12 96 22878 113.59 955 935 193.2
A 13 254 13563 65.37 955 935 193.2
B 6 159 2046479 11282.03 933 908 181.3
B 0 229 42201 227.74 933 908 181.3
B 12 111 22956 121.6 933 908 181.3
C 14 238 146917 679.6 910 913 214.8
C 3 233 64747 297.13 910 913 214.8
C 2 114 17438 76.92 910 913 214.8
D 8 195 259880 1183.52 921 899 218.8
D 2 250 97280 440.45 921 899 218.8
D 7 223 30004 133.01 921 899 218.8

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