ASTROSAT CZTI

Data Quality Report

Orbit 14672

Creation date: 2024-06-27T16:58:18.389743
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/AS1A04_101T01_9000002170_14672cztM0_level2.evt modeM0/AS1A04_101T01_9000002170_14672cztM0_level2_quad_clean.evt
Size (bytes)569,200,32099,627,840
Size542.8 MB 95.0 MB
Events in quadrant A4,066,666630,660
Events in quadrant B3,801,532628,341
Events in quadrant C4,411,152624,632
Events in quadrant D4,445,979607,247

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167993
B0158972
C0177662
D0180372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75621381.824914%
B75621411.864586%
C75621221.613330%
D75621762.327427%

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 9443 7563 0 0 0.00% 0.00%
B 9443 7563 0 0 0.00% 0.00%
C 9443 7563 9 9 0.10% 0.12%
D 9443 7563 112 112 1.19% 1.48%

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 0 253 275461 1405.45 964 944 195.3
A 8 15 46950 235.54 964 944 195.3
A 12 189 32131 159.67 964 944 195.3
B 0 214 29105 153.19 955 932 183.9
B 12 111 22302 116.2 955 932 183.9
B 11 111 19036 98.44 955 932 183.9
C 3 233 748556 3457.0 931 936 216.3
C 10 22 20567 90.77 931 936 216.3
C 13 61 6520 25.82 931 936 216.3
D 12 110 743633 3244.95 931 909 228.9
D 2 152 85753 370.68 931 909 228.9
D 15 145 34093 144.98 931 909 228.9

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