ASTROSAT CZTI

Data Quality Report

Orbit 02983

Creation date: 2024-06-27T14:23:03.743119
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/AS1G05_238T05_9000000418_02983cztM0_level2.evt modeM0/AS1G05_238T05_9000000418_02983cztM0_level2_quad_clean.evt
Size (bytes)428,973,12066,562,560
Size409.1 MB 63.5 MB
Events in quadrant A4,006,025409,346
Events in quadrant B2,849,142427,473
Events in quadrant C2,580,958416,211
Events in quadrant D3,213,473409,400

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153852
B0117401
C0110591
D0130521

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A502654510.843613%
B50261142.268205%
C5026961.910068%
D5026621.233585%

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 7181 5027 351 351 4.89% 6.98%
B 7181 5027 109 109 1.52% 2.17%
C 7181 5027 80 80 1.11% 1.59%
D 7181 5027 47 47 0.65% 0.93%

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 13 9 1881775 17955.88 523 512 104.8
A 0 31 46810 441.9 523 512 104.8
A 13 14 13522 124.18 523 512 104.8
B 3 11 299269 2832.17 550 538 105.5
B 3 27 103447 975.64 550 538 105.5
B 6 203 101945 961.4 550 538 105.5
C 1 192 357776 2874.29 529 532 124.3
C 6 80 64047 511.02 529 532 124.3
C 1 16 22170 174.09 529 532 124.3
D 13 114 748001 5914.58 531 519 126.4
D 1 31 172684 1362.29 531 519 126.4
D 13 239 61836 485.18 531 519 126.4

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