ASTROSAT CZTI

Data Quality Report

Orbit 44132

Creation date: 2024-06-27T22:59:35.262821
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_012T02_9000005950_44132cztM0_level2.fits modeM0/AS1A13_012T02_9000005950_44132cztM0_level2_quad_clean.evt
Size (bytes)485,956,800108,927,360
Size463.4 MB 103.9 MB
Events in quadrant A4,657,438738,327
Events in quadrant B3,458,134751,876
Events in quadrant C3,095,575724,341
Events in quadrant D6,235,138598,009

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01402
B01404
C01404
D01404

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018558107
B015375111
C014635105
D023815385

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6985891.274159%
B69801061.518625%
C698380.114564%
D696575010.768126%

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 7036 6995 40 40 0.57% 0.57%
B 7036 6996 48 48 0.68% 0.69%
C 7036 7002 6 6 0.09% 0.09%
D 7036 6977 690 690 9.81% 9.89%

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 1196160 7275.07 776 758 164.3
A 7 3 407865 2477.6 776 758 164.3
A 10 255 25551 150.89 776 758 164.3
B 5 172 221594 1439.71 770 744 153.4
B 4 171 53869 346.32 770 744 153.4
B 0 199 47164 302.61 770 744 153.4
C 14 254 48225 263.12 757 760 180.4
C 15 157 26412 142.2 757 760 180.4
C 2 14 21115 112.84 757 760 180.4
D 1 47 1510813 8182.27 721 696 184.6
D 13 171 740605 4009.05 721 696 184.6
D 1 52 600572 3250.31 721 696 184.6

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