ASTROSAT CZTI

Data Quality Report

Orbit 30446

Creation date: 2024-06-27T20:15:22.012919
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/AS1A10_121T02_9000004378_30446cztM0_level2.evt modeM0/AS1A10_121T02_9000004378_30446cztM0_level2_quad_clean.evt
Size (bytes)831,375,360107,510,400
Size792.9 MB 102.5 MB
Events in quadrant A3,856,437726,484
Events in quadrant B6,180,219724,119
Events in quadrant C4,400,057709,340
Events in quadrant D10,213,805552,128

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167652
B0240042
C0181812
D0359063

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78011131.448532%
B78022913.729813%
C78022623.358113%
D7801296738.033585%

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 8366 7801 0 0 0.00% 0.00%
B 8367 7802 0 0 0.00% 0.00%
C 8367 7803 0 0 0.00% 0.00%
D 8366 7802 2615 2615 31.26% 33.52%

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 14 239 41096 204.14 969 948 196.7
A 12 96 30841 151.99 969 948 196.7
A 8 192 25200 123.31 969 948 196.7
B 6 159 2298222 12204.38 961 935 188.2
B 0 229 60764 317.84 961 935 188.2
B 0 214 31684 163.35 961 935 188.2
C 3 233 564133 2525.75 936 938 223.0
C 14 238 149283 665.28 936 938 223.0
C 0 10 25903 111.96 936 938 223.0
D 13 104 7025847 37176.9 735 720 189.0
D 8 195 184866 974.5 735 720 189.0
D 12 227 60727 317.56 735 720 189.0

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