ASTROSAT CZTI

Data Quality Report

Orbit 09348

Creation date: 2024-06-27T15:44:46.829476
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/AS1G07_022T01_9000001322_09348cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09348cztM0_level2_quad_clean.evt
Size (bytes)1,393,776,000238,815,360
Size1.3 GB 227.8 MB
Events in quadrant A11,101,1291,539,388
Events in quadrant B8,893,3481,539,518
Events in quadrant C10,875,0871,481,576
Events in quadrant D10,166,5251,472,744

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04454092
B03810231
C04456965
D04249666

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03560
B03560
C03560
D03560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A173774502.589630%
B173913141.805532%
C1738710946.292057%
D173807044.050633%

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 45143 17407 137 137 0.30% 0.79%
B 45143 17408 72 72 0.16% 0.41%
C 45143 17407 658 658 1.46% 3.78%
D 45143 17408 492 492 1.09% 2.83%

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 5 2835078 6967.94 2014 1975 406.6
A 13 251 133757 324.11 2014 1975 406.6
A 1 162 115576 279.4 2014 1975 406.6
B 0 214 212602 549.56 2022 1976 383.3
B 5 250 177004 456.67 2022 1976 383.3
B 15 255 152759 393.42 2022 1976 383.3
C 4 254 3385856 7759.14 1896 1901 436.1
C 10 22 31596 68.09 1896 1901 436.1
C 4 238 22000 46.09 1896 1901 436.1
D 12 227 946581 1863.81 1922 1877 506.9
D 1 52 489241 961.52 1922 1877 506.9
D 7 71 333342 653.95 1922 1877 506.9

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