ASTROSAT CZTI

Data Quality Report

Orbit 37602

Creation date: 2024-06-27T21:42:03.474611
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/AS1T05_053T01_9000005338_37602cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37602cztM0_level2_quad_clean.evt
Size (bytes)497,223,36084,404,160
Size474.2 MB 80.5 MB
Events in quadrant A3,201,879541,363
Events in quadrant B3,376,388546,707
Events in quadrant C2,880,490558,040
Events in quadrant D5,211,646509,739

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130543
B0136952
C0121012
D0193472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57141362.380119%
B57141412.467623%
C5714190.332517%
D57145038.802940%

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 7267 5715 102 102 1.40% 1.78%
B 7266 5713 112 112 1.54% 1.96%
C 7266 5713 11 11 0.15% 0.19%
D 7266 5713 522 522 7.18% 9.14%

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 328555 2473.26 652 640 132.6
A 9 143 301738 2270.99 652 640 132.6
A 12 189 20898 152.79 652 640 132.6
B 5 172 389021 3118.28 645 628 124.6
B 5 255 93709 747.32 645 628 124.6
B 0 189 84864 676.3 645 628 124.6
C 15 214 250620 1675.31 636 639 149.2
C 0 10 68867 457.25 636 639 149.2
C 14 128 35764 235.4 636 639 149.2
D 10 204 846403 5537.5 623 607 152.7
D 2 250 394195 2576.85 623 607 152.7
D 2 249 381418 2493.2 623 607 152.7

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