ASTROSAT CZTI

Data Quality Report

Orbit 44429

Creation date: 2024-06-27T23:03:30.353100
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/AS1A13_072T03_9000006000_44429cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44429cztM0_level2_quad_clean.evt
Size (bytes)366,128,64098,622,720
Size349.2 MB 94.1 MB
Events in quadrant A4,076,021658,677
Events in quadrant B2,799,587685,119
Events in quadrant C2,698,905650,304
Events in quadrant D3,528,676588,150

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170641
B0122371
C0120481
D0144781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5779891.540059%
B5780731.262976%
C5780130.224913%
D5780991.712803%

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 6934 5780 5 5 0.07% 0.09%
B 6935 5781 23 23 0.33% 0.40%
C 6935 5781 1 1 0.01% 0.02%
D 6935 5781 69 69 0.99% 1.19%

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 1457283 10626.12 662 650 137.1
A 10 248 24755 175.85 662 650 137.1
A 0 243 13748 95.55 662 650 137.1
B 0 168 58590 447.32 658 640 129.5
B 5 172 49259 375.29 658 640 129.5
B 0 155 34472 261.15 658 640 129.5
C 3 233 97597 640.55 645 648 151.4
C 14 254 41972 273.03 645 648 151.4
C 2 14 24711 158.99 645 648 151.4
D 5 222 322010 2003.4 641 623 160.4
D 5 235 284946 1772.36 641 623 160.4
D 2 249 137411 852.68 641 623 160.4

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