ASTROSAT CZTI

Data Quality Report

Orbit 43529

Creation date: 2024-06-27T22:52:49.580647
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/AS1A12_102T01_9000005876_43529cztM0_level2.fits modeM0/AS1A12_102T01_9000005876_43529cztM0_level2_quad_clean.evt
Size (bytes)1,195,223,04067,965,120
Size1.1 GB 64.8 MB
Events in quadrant A10,582,477628,337
Events in quadrant B7,325,819714,783
Events in quadrant C15,921,534259,981
Events in quadrant D9,928,7449,208

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0358571
B0262011
C0513861
D0338998

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6283274143.625657%
B628479112.587524%
C6284564189.767664%
D62836283100.000000%

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 7313 6283 2196 2196 30.03% 34.95%
B 7314 6284 634 634 8.67% 10.09%
C 7313 6283 5355 5355 73.23% 85.23%
D 7312 6282 1915 1915 26.19% 30.48%

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 15 222 4231507 32904.05 620 608 128.6
A 0 228 1497505 11641.49 620 608 128.6
A 0 227 698326 5426.21 620 608 128.6
B 3 42 2947686 22289.25 684 665 132.2
B 3 25 605225 4572.48 684 665 132.2
B 0 189 122641 922.54 684 665 132.2
C 15 126 7038320 109042.44 271 273 64.5
C 15 142 3007033 46584.58 271 273 64.5
C 15 174 2676991 41471.14 271 273 64.5
D 4 216 2776507 98778.41 34 31 28.1
D 4 212 1666145 59275.17 34 31 28.1
D 4 201 936889 33330.5 34 31 28.1

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