ASTROSAT CZTI

Data Quality Report

Orbit 33594

Creation date: 2024-06-27T20:50:33.655903
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_060T01_9000004808_33594cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33594cztM0_level2_quad_clean.evt
Size (bytes)568,019,52082,091,520
Size541.7 MB 78.3 MB
Events in quadrant A6,005,028523,865
Events in quadrant B3,683,600547,159
Events in quadrant C3,209,697527,096
Events in quadrant D3,937,128507,475

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216422
B0145411
C0129601
D0155981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A543382815.240199%
B54331953.589177%
C5433811.490889%
D54331182.171912%

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 8900 5435 590 590 6.63% 10.86%
B 8900 5435 135 135 1.52% 2.48%
C 8900 5435 73 73 0.82% 1.34%
D 8900 5435 110 110 1.24% 2.02%

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 3557345 28174.93 631 619 126.2
A 13 254 8444 61.99 631 619 126.2
A 3 137 6041 42.95 631 619 126.2
B 5 172 801942 6339.13 651 633 126.4
B 0 213 100525 790.24 651 633 126.4
B 5 255 91608 719.7 651 633 126.4
C 3 233 252653 1729.4 625 631 145.7
C 15 214 233078 1595.08 625 631 145.7
C 0 10 202652 1386.29 625 631 145.7
D 8 195 678665 4399.77 627 611 154.1
D 2 250 288673 1869.18 627 611 154.1
D 10 118 198371 1283.23 627 611 154.1

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