ASTROSAT CZTI

Data Quality Report

Orbit 34035

Creation date: 2024-06-27T20:55:41.684947
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/AS1A06_003T04_9000004866_34035cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34035cztM0_level2_quad_clean.evt
Size (bytes)577,177,92083,888,640
Size550.4 MB 80.0 MB
Events in quadrant A3,517,074551,913
Events in quadrant B3,821,929553,343
Events in quadrant C3,970,625541,539
Events in quadrant D5,793,306503,212

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140222
B0149271
C0153151
D0210461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55802835.071685%
B55802264.050179%
C55801172.096774%
D558074513.351254%

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 7133 5581 244 244 3.42% 4.37%
B 7133 5581 168 168 2.36% 3.01%
C 7133 5581 93 93 1.30% 1.67%
D 7133 5581 720 720 10.09% 12.90%

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 931899 7153.81 651 638 130.2
A 0 31 45373 343.65 651 638 130.2
A 10 83 16695 123.35 651 638 130.2
B 5 172 784321 6324.44 645 630 123.9
B 0 219 188565 1516.65 645 630 123.9
B 0 189 111120 891.66 645 630 123.9
C 3 233 826919 5698.23 629 635 145.0
C 15 214 259803 1787.28 629 635 145.0
C 0 10 186659 1282.86 629 635 145.0
D 2 249 1633246 10386.06 599 584 157.2
D 8 195 869818 5529.57 599 584 157.2
D 13 249 448958 2852.3 599 584 157.2

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