ASTROSAT CZTI

Data Quality Report

Orbit 43705

Creation date: 2024-06-27T22:54:46.193799
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_008T02_9000005900_43705cztM0_level2.fits modeM0/AS1A13_008T02_9000005900_43705cztM0_level2_quad_clean.evt
Size (bytes)691,735,68098,933,760
Size659.7 MB 94.4 MB
Events in quadrant A7,957,587694,769
Events in quadrant B3,502,388750,691
Events in quadrant C5,267,522641,345
Events in quadrant D8,421,249495,734

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278371
B0139881
C0195831
D0292138

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59145559.384511%
B59151582.671175%
C591580813.660186%
D5914182630.875888%

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 7099 5915 175 175 2.47% 2.96%
B 7100 5916 65 65 0.92% 1.10%
C 7100 5916 544 544 7.66% 9.20%
D 7099 5915 1390 1390 19.58% 23.50%

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 3614181 24388.57 722 710 148.2
A 10 83 723553 4878.72 722 710 148.2
A 15 223 382291 2575.42 722 710 148.2
B 5 235 383863 2676.59 733 713 143.1
B 0 199 83334 577.17 733 713 143.1
B 4 206 63520 438.75 733 713 143.1
C 15 157 2073859 13410.03 662 667 154.6
C 3 233 335831 2167.94 662 667 154.6
C 15 174 133061 856.36 662 667 154.6
D 12 33 2792233 16304.22 619 601 171.2
D 7 80 659928 3850.72 619 601 171.2
D 13 249 336570 1962.19 619 601 171.2

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