ASTROSAT CZTI

Data Quality Report

Orbit 45063

Creation date: 2024-06-27T23:09:30.832738
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_020T01_9000006040_45063cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45063cztM0_level2_quad_clean.evt
Size (bytes)1,729,586,880256,340,160
Size1.6 GB 244.5 MB
Events in quadrant A14,011,4621,847,859
Events in quadrant B8,451,4371,883,714
Events in quadrant C8,393,8931,800,856
Events in quadrant D31,785,863994,413

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03702
B03691
C03700
D03684

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152
B0152
C0150
D0162

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056539888
B037957511
C038680584
D01084731728

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A178893451.928559%
B179321871.042828%
C179362551.421722%
D17791773443.471418%

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 19580 18012 45 45 0.23% 0.25%
B 19579 18058 24 24 0.12% 0.13%
C 19580 18061 163 163 0.83% 0.90%
D 19579 17945 6894 6894 35.21% 38.42%

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 6000537 14461.51 1997 1954 414.8
A 13 248 118453 280.86 1997 1954 414.8
A 7 3 53923 125.29 1997 1954 414.8
B 5 255 153536 384.56 2005 1940 394.2
B 0 155 121047 302.14 2005 1940 394.2
B 5 32 96625 240.19 2005 1940 394.2
C 14 254 528055 1141.02 1970 1979 461.1
C 1 3 81742 173.0 1970 1979 461.1
C 2 14 56498 118.25 1970 1979 461.1
D 13 174 12249754 28819.44 1653 1596 425.0
D 11 241 5073784 11934.66 1653 1596 425.0
D 1 52 1856530 4364.59 1653 1596 425.0

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