ASTROSAT CZTI

Data Quality Report

Orbit 33713

Creation date: 2024-06-27T20:52:08.326365
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_088T01_9000004814_33713cztM0_level2.evt modeM0/AS1T04_088T01_9000004814_33713cztM0_level2_quad_clean.evt
Size (bytes)473,797,44078,045,120
Size451.8 MB 74.4 MB
Events in quadrant A2,716,787512,080
Events in quadrant B3,684,276503,122
Events in quadrant C2,989,689527,781
Events in quadrant D4,629,694479,864

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110913
B0141512
C0119352
D0173482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4854430.885867%
B48543316.819118%
C4854921.895344%
D48542394.923774%

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 6978 4856 39 39 0.56% 0.80%
B 6978 4856 264 264 3.78% 5.44%
C 6978 4856 66 66 0.95% 1.36%
D 6978 4856 223 223 3.20% 4.59%

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 15 237 222755 1801.91 628 618 123.3
A 14 4 52166 418.14 628 618 123.3
A 13 6 12284 94.63 628 618 123.3
B 5 172 1044077 9212.27 615 600 113.3
B 15 222 92579 812.03 615 600 113.3
B 4 170 22355 192.06 615 600 113.3
C 0 10 226299 1601.81 623 630 140.9
C 15 214 225027 1592.78 623 630 140.9
C 14 67 53514 375.37 623 630 140.9
D 1 52 1162191 7262.44 605 592 159.9
D 13 249 405747 2533.07 605 592 159.9
D 8 195 366843 2289.84 605 592 159.9

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