ASTROSAT CZTI

Data Quality Report

Orbit 48462

Creation date: 2024-09-13T13:49:55.800429
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_029T01_9000006426_48462cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48462cztM0_level2_quad_clean.evt
Size (bytes)426,571,200101,790,720
Size406.8 MB 97.1 MB
Events in quadrant A6,378,147669,611
Events in quadrant B2,930,571699,646
Events in quadrant C2,810,343671,922
Events in quadrant D3,187,042606,136

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239182
B0130781
C0129351
D0139011

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62332253.609819%
B62331081.732713%
C6233610.978662%
D62341342.149503%

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 7248 6233 5 5 0.07% 0.08%
B 7248 6233 5 5 0.07% 0.08%
C 7248 6234 4 4 0.06% 0.06%
D 7249 6234 43 43 0.59% 0.69%

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 3637548 24648.4 702 687 147.5
A 13 248 13342 85.76 702 687 147.5
A 13 254 11868 75.77 702 687 147.5
B 12 16 56220 400.37 700 679 138.7
B 5 255 35814 253.27 700 679 138.7
B 0 186 17550 121.62 700 679 138.7
C 15 208 23918 140.18 698 701 165.6
C 12 2 23226 136.0 698 701 165.6
C 12 249 21313 124.45 698 701 165.6
D 12 2 158630 901.06 698 677 175.3
D 10 199 128484 729.09 698 677 175.3
D 5 222 53192 299.58 698 677 175.3

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