ASTROSAT CZTI

Data Quality Report

Orbit 45254

Creation date: 2024-06-27T23:11:31.322103
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/AS1A13_023T05_9000006062_45254cztM0_level2.fits modeM0/AS1A13_023T05_9000006062_45254cztM0_level2_quad_clean.evt
Size (bytes)471,035,520110,007,360
Size449.2 MB 104.9 MB
Events in quadrant A5,707,243723,539
Events in quadrant B3,047,281773,518
Events in quadrant C3,211,069731,591
Events in quadrant D4,955,483639,816

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221152
B0136522
C0141222
D0193082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66352734.114544%
B6636520.783605%
C6636360.542495%
D66363965.967450%

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 8725 6636 112 112 1.28% 1.69%
B 8726 6637 0 0 0.00% 0.00%
C 8726 6637 14 14 0.16% 0.21%
D 8726 6636 433 433 4.96% 6.53%

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 10 83 2359206 15272.1 751 736 154.4
A 13 248 440038 2844.67 751 736 154.4
A 3 137 8407 49.67 751 736 154.4
B 12 111 19638 126.49 761 738 149.4
B 14 111 17889 114.78 761 738 149.4
B 11 111 17722 113.66 761 738 149.4
C 14 254 151711 854.88 747 751 176.6
C 12 2 84056 471.76 747 751 176.6
C 11 16 28297 155.99 747 751 176.6
D 13 249 1196502 6592.72 722 699 181.4
D 11 241 331180 1822.01 722 699 181.4
D 13 84 206091 1132.37 722 699 181.4

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