ASTROSAT CZTI

Data Quality Report

Orbit 43175

Creation date: 2024-06-27T22:48:54.770928
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/AS1C07_001T10_9000005856_43175cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43175cztM0_level2_quad_clean.evt
Size (bytes)376,611,84091,474,560
Size359.2 MB 87.2 MB
Events in quadrant A4,793,572576,378
Events in quadrant B2,750,568634,678
Events in quadrant C2,601,209599,472
Events in quadrant D3,343,632553,413

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180402
B0123632
C0116442
D0143242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58025519.496725%
B5803250.430812%
C580350.086162%
D58031783.067379%

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 7114 5803 404 404 5.68% 6.96%
B 7115 5804 16 16 0.22% 0.28%
C 7115 5804 0 0 0.00% 0.00%
D 7115 5804 130 130 1.83% 2.24%

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 15 222 1477939 12276.61 584 571 120.3
A 10 83 599832 4979.73 584 571 120.3
A 13 248 221176 1833.18 584 571 120.3
B 0 186 197321 1661.53 611 596 118.4
B 0 229 111785 939.1 611 596 118.4
B 4 67 22829 187.78 611 596 118.4
C 15 214 242882 1715.89 599 603 141.2
C 15 111 16287 111.08 599 603 141.2
C 14 254 4380 26.75 599 603 141.2
D 12 233 661386 4488.37 597 580 147.2
D 1 52 272249 1845.25 597 580 147.2
D 1 47 29996 199.8 597 580 147.2

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