ASTROSAT CZTI

Data Quality Report

Orbit 05892

Creation date: 2024-06-27T15:00:32.231519
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/AS1A02_114T01_9000000764_05892cztM0_level2.evt modeM0/AS1A02_114T01_9000000764_05892cztM0_level2_quad_clean.evt
Size (bytes)452,960,64073,500,480
Size432.0 MB 70.1 MB
Events in quadrant A2,901,770449,983
Events in quadrant B3,025,231459,145
Events in quadrant C2,889,504451,292
Events in quadrant D4,472,737424,615

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01301142
B01304731
C01294531
D01780257

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6309450.713267%
B6311821.299319%
C6313681.077142%
D6309881.394833%

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 7459 6322 0 0 0.00% 0.00%
B 7459 6325 0 0 0.00% 0.00%
C 7459 6322 0 0 0.00% 0.00%
D 7459 6322 13 13 0.17% 0.21%

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 15 234 30308 195.95 743 726 151.0
A 10 1 8697 52.8 743 726 151.0
A 12 194 6982 41.44 743 726 151.0
B 15 204 56170 384.56 756 737 144.1
B 0 219 20125 134.5 756 737 144.1
B 15 255 14618 96.3 756 737 144.1
C 13 61 5782 29.4 740 743 171.4
C 12 4 2035 7.54 740 743 171.4
C 3 202 1895 6.72 740 743 171.4
D 1 20 1503711 8491.96 730 709 177.0
D 2 152 145387 817.43 730 709 177.0
D 2 136 25385 139.42 730 709 177.0

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