ASTROSAT CZTI

Data Quality Report

Orbit 33433

Creation date: 2024-06-27T20:48:47.040082
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_046T04_9000004792_33433cztM0_level2.evt modeM0/AS1A11_046T04_9000004792_33433cztM0_level2_quad_clean.evt
Size (bytes)494,406,720101,232,000
Size471.5 MB 96.5 MB
Events in quadrant A2,700,010687,317
Events in quadrant B3,356,359684,211
Events in quadrant C2,998,384683,310
Events in quadrant D5,550,317630,770

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112663
B0135962
C0123412
D0201852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A543250.092047%
B54322083.829161%
C5432921.693667%
D54324047.437408%

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 7104 5433 0 0 0.00% 0.00%
B 7104 5432 143 143 2.01% 2.63%
C 7104 5433 71 71 1.00% 1.31%
D 7103 5432 397 397 5.59% 7.31%

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 294008 2382.28 618 605 123.2
A 13 6 11773 90.68 618 605 123.2
A 13 254 9491 72.15 618 605 123.2
B 5 172 458048 3900.34 610 594 117.3
B 5 255 325798 2772.75 610 594 117.3
B 0 219 58285 491.88 610 594 117.3
C 1 23 254252 1819.59 602 606 139.4
C 15 214 234465 1677.65 602 606 139.4
C 0 10 84128 599.17 602 606 139.4
D 8 195 1841738 12780.18 588 571 144.1
D 1 52 602632 4179.11 588 571 144.1
D 13 249 308150 2135.01 588 571 144.1

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