ASTROSAT CZTI

Data Quality Report

Orbit 05136

Creation date: 2024-06-27T14:51:48.234151
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/AS1G05_102T01_9000000650_05136cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05136cztM0_level2_quad_clean.evt
Size (bytes)359,873,28046,707,840
Size343.2 MB 44.5 MB
Events in quadrant A2,377,187264,562
Events in quadrant B3,057,132267,486
Events in quadrant C2,343,760268,742
Events in quadrant D2,775,194257,389

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104352
B0123141
C0104161
D0115991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5071420.828239%
B50711432.819957%
C5071480.946559%
D5071511.005719%

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 6231 5072 0 0 0.00% 0.00%
B 6231 5072 55 55 0.88% 1.08%
C 6231 5072 0 0 0.00% 0.00%
D 6231 5072 1 1 0.02% 0.02%

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 0 149 34907 274.53 607 593 125.0
A 0 226 8948 66.84 607 593 125.0
A 12 194 5962 42.96 607 593 125.0
B 10 16 403729 3461.39 612 599 116.5
B 4 80 159039 1360.41 612 599 116.5
B 15 204 94050 802.4 612 599 116.5
C 12 4 14477 100.0 596 599 138.8
C 13 61 4914 31.09 596 599 138.8
C 1 16 4853 30.65 596 599 138.8
D 8 195 444653 3034.92 594 575 146.3
D 2 33 43406 292.72 594 575 146.3
D 12 233 20802 138.24 594 575 146.3

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