ASTROSAT CZTI

Data Quality Report

Orbit 08896

Creation date: 2024-06-27T15:38:41.421899
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/AS1A03_092T01_9000001240_08896cztM0_level2.evt modeM0/AS1A03_092T01_9000001240_08896cztM0_level2_quad_clean.evt
Size (bytes)441,161,28072,051,840
Size420.7 MB 68.7 MB
Events in quadrant A3,199,841434,077
Events in quadrant B3,160,243437,444
Events in quadrant C2,983,941428,014
Events in quadrant D3,559,033412,961

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138092
B0138321
C0136401
D0147021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6733390.579237%
B6733520.772315%
C6733340.504975%
D6733841.247587%

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 7638 6733 0 0 0.00% 0.00%
B 7638 6733 6 6 0.08% 0.09%
C 7638 6733 0 0 0.00% 0.00%
D 7638 6733 46 46 0.60% 0.68%

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 8 5 148709 924.84 787 769 160.0
A 5 16 14202 83.98 787 769 160.0
A 0 226 7317 40.93 787 769 160.0
B 10 16 39377 255.2 792 770 151.3
B 0 214 24107 154.26 792 770 151.3
B 12 111 16443 103.6 792 770 151.3
C 13 61 5741 28.1 763 766 177.1
C 14 234 5036 24.12 763 766 177.1
C 12 4 3625 16.15 763 766 177.1
D 8 195 401462 2054.78 751 730 195.0
D 7 71 176031 898.87 751 730 195.0
D 1 52 59382 300.74 751 730 195.0

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