ASTROSAT CZTI

Data Quality Report

Orbit 33632

Creation date: 2024-06-27T20:50:53.649416
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/AS1T04_076T01_9000004810_33632cztM0_level2.evt modeM0/AS1T04_076T01_9000004810_33632cztM0_level2_quad_clean.evt
Size (bytes)560,456,64074,018,880
Size534.5 MB 70.6 MB
Events in quadrant A3,035,388461,959
Events in quadrant B3,864,826464,799
Events in quadrant C3,925,436460,371
Events in quadrant D5,739,676432,799

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127323
B0153382
C0156972
D0213432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6025250.414938%
B60252944.879668%
C6025871.443983%
D602563010.456432%

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 8650 6027 19 19 0.22% 0.32%
B 8650 6027 225 225 2.60% 3.73%
C 8650 6027 76 76 0.88% 1.26%
D 8650 6027 582 582 6.73% 9.66%

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 15 169 175904 1232.36 705 691 142.2
A 15 237 72590 505.7 705 691 142.2
A 7 16 28409 194.95 705 691 142.2
B 5 172 906203 6762.7 693 674 133.9
B 0 213 40172 294.98 693 674 133.9
B 0 190 37062 271.75 693 674 133.9
C 3 233 670552 4194.25 685 689 159.7
C 15 214 279192 1743.81 685 689 159.7
C 0 10 226182 1411.89 685 689 159.7
D 7 223 1143594 6611.89 661 645 172.9
D 8 195 854200 4937.77 661 645 172.9
D 2 250 569478 3290.67 661 645 172.9

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