ASTROSAT CZTI

Data Quality Report

Orbit 44604

Creation date: 2024-06-27T23:04:25.458116
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_009T03_9000006006_44604cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44604cztM0_level2_quad_clean.evt
Size (bytes)511,914,240114,272,640
Size488.2 MB 109.0 MB
Events in quadrant A5,124,597792,034
Events in quadrant B5,076,820751,623
Events in quadrant C4,103,296766,877
Events in quadrant D4,138,166694,362

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205972
B0192662
C0163772
D0166632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65251502.298851%
B652573111.203065%
C65251762.697318%
D65252573.938697%

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 7750 6525 13 13 0.17% 0.20%
B 7750 6525 561 561 7.24% 8.60%
C 7750 6525 113 113 1.46% 1.73%
D 7750 6525 207 207 2.67% 3.17%

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 1955773 11829.13 791 774 165.3
A 15 223 96780 580.9 791 774 165.3
A 13 248 11342 63.94 791 774 165.3
B 5 172 1137494 7619.24 762 740 149.2
B 14 167 882547 5910.42 762 740 149.2
B 0 155 27589 179.96 762 740 149.2
C 3 233 838575 4592.8 777 784 182.4
C 12 2 179238 978.29 777 784 182.4
C 14 254 54635 295.21 777 784 182.4
D 13 249 487139 2548.1 762 740 190.9
D 1 52 397911 2080.66 762 740 190.9
D 7 96 129265 673.3 762 740 190.9

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