ASTROSAT CZTI

Data Quality Report

Orbit 30711

Creation date: 2024-06-27T20:18:43.965041
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/AS1A10_071T44_9000004434_30711cztM0_level2.evt modeM0/AS1A10_071T44_9000004434_30711cztM0_level2_quad_clean.evt
Size (bytes)332,349,12050,581,440
Size317.0 MB 48.2 MB
Events in quadrant A1,631,854345,007
Events in quadrant B2,525,524342,989
Events in quadrant C1,867,090324,735
Events in quadrant D3,831,496299,606

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065591
B095953
C072761
D0135581

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3081351.135995%
B3080712.305195%
C30801173.798701%
D308039412.792208%

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 4061 3081 5 5 0.12% 0.16%
B 4060 3080 16 16 0.39% 0.52%
C 4060 3080 48 48 1.18% 1.56%
D 4060 3080 341 341 8.40% 11.07%

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 0 13 48734 587.2 407 400 82.3
A 8 192 10455 122.16 407 400 82.3
A 13 254 5608 63.27 407 400 82.3
B 6 159 837776 10555.8 401 391 79.3
B 5 255 51395 642.94 401 391 79.3
B 0 190 16593 204.24 401 391 79.3
C 10 22 215492 2349.22 384 387 91.6
C 14 238 61673 669.32 384 387 91.6
C 3 233 50929 551.98 384 387 91.6
D 8 195 1852186 20246.55 379 369 91.5
D 13 174 313463 3423.16 379 369 91.5
D 13 249 104908 1142.96 379 369 91.5

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