ASTROSAT CZTI

Data Quality Report

Orbit 45330

Creation date: 2024-06-27T23:12:21.246168
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/AS1A05_166T01_9000006070_45330cztM0_level2.fits modeM0/AS1A05_166T01_9000006070_45330cztM0_level2_quad_clean.evt
Size (bytes)437,777,280108,840,960
Size417.5 MB 103.8 MB
Events in quadrant A5,258,561728,738
Events in quadrant B3,605,960755,477
Events in quadrant C2,986,440731,556
Events in quadrant D3,871,774646,004

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203011
B0147701
C0131971
D0157831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62111482.382869%
B62111672.688778%
C6212500.804894%
D62121923.090792%

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 7421 6211 17 17 0.23% 0.27%
B 7421 6211 68 68 0.92% 1.09%
C 7422 6212 21 21 0.28% 0.34%
D 7422 6213 141 141 1.90% 2.27%

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 2451915 16809.82 706 689 145.8
A 9 191 32200 216.09 706 689 145.8
A 0 243 22590 150.19 706 689 145.8
B 15 201 207406 1501.11 714 695 137.7
B 3 112 162270 1173.34 714 695 137.7
B 5 255 143853 1039.59 714 695 137.7
C 14 254 133490 799.04 710 715 166.2
C 12 2 36151 213.25 710 715 166.2
C 3 233 25081 146.63 710 715 166.2
D 2 249 260569 1486.96 695 672 174.8
D 13 171 195969 1117.36 695 672 174.8
D 1 52 177606 1012.3 695 672 174.8

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