ASTROSAT CZTI

Data Quality Report

Orbit 45671

Creation date: 2024-06-27T23:14:50.058201
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/AS1A13_093T12_9000006118_45671cztM0_level2.fits modeM0/AS1A13_093T12_9000006118_45671cztM0_level2_quad_clean.evt
Size (bytes)1,259,409,600304,439,040
Size1.2 GB 290.3 MB
Events in quadrant A15,958,6452,013,786
Events in quadrant B9,669,3962,066,840
Events in quadrant C9,006,4932,007,403
Events in quadrant D10,490,1511,798,337

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0614175
B0421583
C0413753
D0455923

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03940
B03940
C03940
D03940

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A193213621.873609%
B193213691.909839%
C193221951.009212%
D193224972.572197%

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 20652 19326 19 19 0.09% 0.10%
B 20652 19327 159 159 0.77% 0.82%
C 20653 19328 110 110 0.53% 0.57%
D 20652 19327 361 361 1.75% 1.87%

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 10 83 7538117 17132.87 2119 2074 439.9
A 13 248 141874 317.83 2119 2074 439.9
A 14 235 62059 136.37 2119 2074 439.9
B 5 172 559908 1357.65 2122 2059 410.9
B 0 183 119475 285.76 2122 2059 410.9
B 0 190 110981 265.09 2122 2059 410.9
C 14 254 670933 1356.58 2100 2109 493.0
C 1 3 79851 157.68 2100 2109 493.0
C 2 14 25506 47.46 2100 2109 493.0
D 13 249 924580 1772.45 2074 2009 520.5
D 1 52 452739 865.95 2074 2009 520.5
D 2 249 424951 812.56 2074 2009 520.5

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