ASTROSAT CZTI

Data Quality Report

Orbit 45693

Creation date: 2024-06-27T23:15:07.389625
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_028T01_9000006122_45693cztM0_level2.fits modeM0/AS1A13_028T01_9000006122_45693cztM0_level2_quad_clean.evt
Size (bytes)831,499,20095,221,440
Size793.0 MB 90.8 MB
Events in quadrant A6,033,158768,182
Events in quadrant B3,895,939792,220
Events in quadrant C15,041,876169,695
Events in quadrant D5,292,606689,175

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218701
B0157941
C0492167
D0202271

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66582543.814959%
B66592503.754317%
C6658548382.352058%
D66583054.580955%

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 7728 6658 6 6 0.08% 0.09%
B 7729 6659 70 70 0.91% 1.05%
C 7727 6657 5228 5228 67.66% 78.53%
D 7728 6658 195 195 2.52% 2.93%

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 2933672 17868.06 791 771 164.1
A 13 248 32756 194.86 791 771 164.1
A 3 137 8703 48.32 791 771 164.1
B 12 18 335869 2206.5 786 761 151.9
B 0 186 154347 1011.28 786 761 151.9
B 3 112 114473 748.73 786 761 151.9
C 9 54 12789716 100509.1 548 550 127.2
C 14 254 80030 624.63 548 550 127.2
C 0 207 24807 190.63 548 550 127.2
D 2 165 1186883 6157.9 772 746 192.6
D 2 249 342344 1773.42 772 746 192.6
D 1 52 281258 1456.29 772 746 192.6

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