ASTROSAT CZTI

Data Quality Report

Orbit 44048

Creation date: 2024-06-27T22:58:43.844495
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_025T02_9000005938_44048cztM0_level2.fits modeM0/AS1A13_025T02_9000005938_44048cztM0_level2_quad_clean.evt
Size (bytes)372,669,12090,299,520
Size355.4 MB 86.1 MB
Events in quadrant A3,407,077596,930
Events in quadrant B2,745,410619,163
Events in quadrant C3,040,149596,002
Events in quadrant D4,157,308522,426

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136641
B0121760
C0130610
D0162700

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57131582.765622%
B57131492.608087%
C57131412.468055%
D57134648.121827%

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 5713 5713 0 0 0.00% 0.00%
B 5713 5713 8 8 0.14% 0.14%
C 5713 5713 52 52 0.91% 0.91%
D 5713 5713 344 344 6.02% 6.02%

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 851085 6237.68 650 635 136.3
A 10 255 26542 190.02 650 635 136.3
A 7 3 11762 81.61 650 635 136.3
B 0 213 123343 938.43 647 625 130.8
B 0 200 41566 313.08 647 625 130.8
B 12 111 16941 124.77 647 625 130.8
C 14 254 288078 1905.56 634 637 150.8
C 15 158 151985 1003.34 634 637 150.8
C 3 233 87720 577.31 634 637 150.8
D 1 52 1044753 6641.19 620 602 157.2
D 5 235 369516 2346.43 620 602 157.2
D 2 249 82858 523.18 620 602 157.2

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