ASTROSAT CZTI

Data Quality Report

Orbit 03055

Creation date: 2024-06-27T14:24:02.833874
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_238T03_9000000424_03055cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03055cztM0_level2_quad_clean.evt
Size (bytes)354,291,84080,340,480
Size337.9 MB 76.6 MB
Events in quadrant A2,405,944529,063
Events in quadrant B2,707,724526,862
Events in quadrant C2,434,068512,597
Events in quadrant D2,823,934496,261

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106863
B0113622
C0109152
D0119132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5253120.228441%
B5253300.571102%
C5253230.437845%
D5253210.399772%

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 7408 5254 5 5 0.07% 0.10%
B 7408 5254 19 19 0.26% 0.36%
C 7408 5254 14 14 0.19% 0.27%
D 7408 5254 12 12 0.16% 0.23%

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 50 32091 261.01 602 589 120.7
A 14 249 26817 217.31 602 589 120.7
A 13 251 11830 93.14 602 589 120.7
B 2 249 87914 762.0 605 593 114.6
B 0 230 77907 674.67 605 593 114.6
B 0 219 67827 586.71 605 593 114.6
C 12 206 64966 476.73 578 582 135.1
C 6 80 36423 265.38 578 582 135.1
C 1 16 14277 101.4 578 582 135.1
D 13 114 232176 1623.87 584 566 142.6
D 2 152 100773 702.57 584 566 142.6
D 2 232 93144 649.09 584 566 142.6

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