ASTROSAT CZTI

Data Quality Report

Orbit 43592

Creation date: 2024-06-27T22:53:27.382896
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/AS1A12_068T04_9000005888_43592cztM0_level2.fits modeM0/AS1A12_068T04_9000005888_43592cztM0_level2_quad_clean.evt
Size (bytes)1,058,777,28068,319,360
Size1009.7 MB 65.2 MB
Events in quadrant A4,305,711708,504
Events in quadrant B4,041,772714,788
Events in quadrant C16,133,771141,677
Events in quadrant D14,234,61867,064

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171042
B0162491
C0521701
D0465161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61631101.784845%
B61631853.001785%
C6163614899.756612%
D61636163100.000000%

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 7168 6164 19 19 0.27% 0.31%
B 7168 6164 74 74 1.03% 1.20%
C 7167 6162 6024 6024 84.05% 97.76%
D 7167 6162 4962 4962 69.23% 80.53%

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 10 83 774013 5471.56 688 673 141.3
A 12 189 419508 2963.36 688 673 141.3
A 15 222 144187 1015.4 688 673 141.3
B 4 206 436631 3304.25 686 665 131.9
B 0 219 319777 2418.6 686 665 131.9
B 0 199 162705 1228.13 686 665 131.9
C 15 142 9846637 269405.83 150 151 36.5
C 15 174 3782773 103494.83 150 151 36.5
C 15 175 571038 15619.81 150 151 36.5
D 8 192 8470679 291280.29 89 86 29.1
D 4 216 1792394 61632.52 89 86 29.1
D 4 212 1766311 60735.6 89 86 29.1

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