ASTROSAT CZTI

Data Quality Report

Orbit 47593

Creation date: 2024-07-16T23:36:04.170729
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_037T05_9000006338_47593cztM0_level2.fits modeM0/AS1A13_037T05_9000006338_47593cztM0_level2_quad_clean.evt
Size (bytes)478,123,200103,181,760
Size456.0 MB 98.4 MB
Events in quadrant A6,941,053668,271
Events in quadrant B3,186,530723,839
Events in quadrant C2,842,845694,411
Events in quadrant D4,247,675605,596

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250473
B0136881
C0129991
D0169811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61905558.966074%
B61911542.487482%
C6191761.227588%
D61914096.606364%

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 7129 6190 205 205 2.88% 3.31%
B 7131 6191 10 10 0.14% 0.16%
C 7131 6191 0 0 0.00% 0.00%
D 7131 6191 272 272 3.81% 4.39%

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 3512814 24218.74 696 684 145.0
A 13 248 436241 3003.49 696 684 145.0
A 9 191 266908 1835.81 696 684 145.0
B 5 32 117017 827.51 714 695 140.6
B 0 200 94583 667.92 714 695 140.6
B 5 172 51524 361.59 714 695 140.6
C 3 233 117983 721.84 694 700 162.5
C 12 250 8296 46.75 694 700 162.5
C 1 3 7649 42.77 694 700 162.5
D 2 249 860912 4978.39 686 665 172.8
D 13 84 240890 1390.22 686 665 172.8
D 7 55 228748 1319.95 686 665 172.8

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