ASTROSAT CZTI

Data Quality Report

Orbit 34248

Creation date: 2024-06-27T20:58:05.547658
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/AS1A11_059T09_9000004888_34248cztM0_level2.evt modeM0/AS1A11_059T09_9000004888_34248cztM0_level2_quad_clean.evt
Size (bytes)463,973,76084,836,160
Size442.5 MB 80.9 MB
Events in quadrant A2,738,646559,420
Events in quadrant B3,809,644566,172
Events in quadrant C3,118,230569,528
Events in quadrant D4,050,143527,563

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111890
B0145650
C0123170
D0154530

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A494060.121457%
B49404358.805668%
C49401543.117409%
D49402444.939271%

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 7003 4941 4 4 0.06% 0.08%
B 7003 4941 289 289 4.13% 5.85%
C 7003 4941 99 99 1.41% 2.00%
D 7003 4941 200 200 2.86% 4.05%

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 47 249036 1998.39 628 617 124.3
A 10 83 24113 189.01 628 617 124.3
A 7 16 18916 147.2 628 617 124.3
B 5 172 1193188 10464.24 609 598 114.0
B 0 183 71940 625.98 609 598 114.0
B 15 222 39307 339.65 609 598 114.0
C 0 10 312375 2228.16 613 620 139.9
C 15 214 213173 1519.15 613 620 139.9
C 0 207 100396 713.11 613 620 139.9
D 8 195 701026 4809.24 605 590 145.6
D 7 80 693144 4755.12 605 590 145.6
D 2 250 140523 960.79 605 590 145.6

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