ASTROSAT CZTI

Data Quality Report

Orbit 29335

Creation date: 2024-06-27T20:02:51.669438
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/AS1A10_050T03_9000004216_29335cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29335cztM0_level2_quad_clean.evt
Size (bytes)917,657,280111,781,440
Size875.1 MB 106.6 MB
Events in quadrant A3,585,188773,104
Events in quadrant B3,853,840780,844
Events in quadrant C3,725,374760,994
Events in quadrant D16,103,978530,665

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159121
B0166491
C0158821
D0531541

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7733330.426743%
B77341061.370572%
C7734740.956814%
D7734495964.119472%

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 8458 7734 3 3 0.04% 0.04%
B 8459 7735 39 39 0.46% 0.50%
C 8459 7735 0 0 0.00% 0.00%
D 8459 7734 4668 4668 55.18% 60.36%

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 1 113 28715 152.12 909 891 182.9
A 15 174 22879 120.21 909 891 182.9
A 13 254 15887 81.99 909 891 182.9
B 4 171 87093 495.91 901 877 173.9
B 5 172 80752 459.43 901 877 173.9
B 10 245 74813 425.27 901 877 173.9
C 14 238 142473 673.86 883 888 210.1
C 3 233 94342 444.78 883 888 210.1
C 4 175 21479 98.0 883 888 210.1
D 12 33 10330151 68608.27 625 608 150.6
D 7 80 1986037 13187.11 625 608 150.6
D 1 52 1070640 7107.09 625 608 150.6

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